Bash-5.3-rc2 release

2026-06-29 08:29:54 +02:00 · 2025-06-02 12:05:51 -04:00
parent c8f067a967
commit 102140e4c4
146 changed files with 21928 additions and 19439 deletions
@@ -1,3 +1,45 @@
+This document details the changes between this version, bash-5.3-rc2, and
+the previous version, bash-5.3-rc1.
+
+1. Changes to Bash
+
+a. Fixed a problem with invoking the correct programmable completion compspec
+   if the line contains a quoted command separator before point.
+
+b. Fixed a bug in the `read' builtin that caused it to skip the delimiter if
+   it appeared in an invalid multibyte character.
+
+c. Fixed a bug with parsing command substitutions that caused a syntax error
+   to pop too many input sources.
+
+d. Fixed an issue with recursive parsing that caused the parser to reset and
+   pop all the delimiters off the stack; the caller needs to check for that
+   possibility.
+
+e. Fixed an issue with interactive input that caused EOF not to exit the
+   shell if it was read as part of a here-document.
+
+f. Fixed an issue with a backslash-newline appearing after a right paren in
+   a nested subshell command.
+
+g. Fixed an issue with invalid sequence expressions in brace expansions.
+
+h. Fixed an issue with a nameref variable referencing an unset array element
+   when the nounset option is enabled.
+
+2. Changes to Readline
+
+a. The history library no longer skips blank lines while it is reading a
+   multiline history entry from a history file.
+
+3. New Features in Bash
+
+a. The `install-strip' and `strip' Makefile targets now deal with cross-
+   compiling.
+
+4. New Features in Readline
+
+------------------------------------------------------------------------------
 This document details the changes between this version, bash-5.3-rc1, and
 the previous version, bash-5.3-beta.

@@ -1,4 +1,3 @@
-
 				 12/6/2020
 				 ---------

@@ -11103,3 +11102,169 @@ lib/sh/gettimeofday.c
 	- updated from version in gnulib

 [bash-5.3-rc1 frozen]
+
+				    4/4
+				    ---
+examples/loadables/fltexpr.c
+	- add support for function calls; support almost all math function
+	  calls in math.h
+	- add support for pi, gamma, e mathematical constants
+
+				    4/7
+				    ---
+doc/bash.1,doc/bashref.texi
+	- HISTFILESIZE: note that the history file will contain complete
+	  history entries whose lines may total slightly more than
+	  $HISTFILESIZE if the entries contain multiple lines
+	  From a report from Jens Schmidt <farblos@vodafonemail.de>
+	- export: note that you can use -f with -p to display exported functions
+	  From a report from Duncan Roe <duncan_roe@optusnet.com.au>
+
+builtins/history.def
+	- add history -d start-end to the long doc
+	  From a report from Duncan Roe <duncan_roe@optusnet.com.au>
+
+				    4/9
+				    ---
+lib/readline/histfile.c
+	- read_history_range: changes to not skip blank lines if we are
+	  reading a history file with multiline history entries.
+	  From a report by Jens Schmidt <farblos@vodafonemail.de>
+
+				   4/11
+				   ----
+bashline.c
+	- attempt_shell_completion: move the check for char_is_quoted from
+	  check_redir to the caller, set in_command_position to 0 if the
+	  command separator is quoted
+	  From https://savannah.gnu.org/support/?111224 david@mandelberg.org
+	- check_extglob: break check for extended glob out into separate
+	  function, call from attempted_shell_completion, set in_command_position
+	  to -1 if it returns 1, as with the old call to check_redir
+
+				   4/21
+				   ----
+builtins/read.def
+	- read_mbchar: if we read a delimiter character that makes an
+	  incomplete multibyte character into an invalid multibyte character,
+	  only push the delimiter back if we read that character ourselves
+	  (i > 1).
+	  Report from Greg Wooledge <greg@wooledge.org>
+
+				   4/23
+				   ----
+parse.y
+	- pop_delimiter: only decrement delimiter_depth if it's > 0, since
+	  reset_parser() may have set it to 0 after the matching call to
+	  push_delimiter
+	  Report from Grisha Levit <grishalevit@gmail.com> based on a report
+	  from Александр Ушаков <aushakov@astralinux.ru>
+
+				   4/25
+				   ----
+parse.y
+	- read_a_line: if the shell is interactive, and not reading from a
+	  string, check whether a previous call to shell_getc has set
+	  EOF_Reached and return EOF in this case, after resetting the
+	  current token to '\n'. This makes EOFs that are not the first
+	  character on the line `sticky' instead of just token delimiters.
+	  From https://savannah.gnu.org/bugs/?67045
+	- history_delimiting_chars: if it looks like we just finished a
+	  subshell, and the line we're adding begins with an operator that
+	  can't follow a semicolon, return a newline
+	  From https://savannah.gnu.org/patch/?10517
+
+				   4/28
+				   ----
+parse.y
+	- parse_arith_command: if the character after the first right paren
+	  isn't a right paren, making the construct a nested subshell, push
+	  that character back and return the subshell command as the current
+	  token string, which we push onto the pushed string list. Reading
+	  one character more can cause synchronization problems with backslash
+	  newline, among other things.
+	  From https://savannah.gnu.org/patch/?10517
+
+				   4/29
+				   ----
+builtins/evalstring.c
+	- parse_string: only run the top-level unwind-protects if we're
+	  actually going to be calling jump_to_top_level(); otherwise let
+	  xparse_dolparen take care of it
+	  From a report by Александр Ушаков <aushakov@astralinux.ru>
+
+				    5/1
+				    ---
+lib/sh/zread.c
+	- zungetc: rework to use a local 16-byte buffer so we can push back
+	  multiple characters whether we use read or zread
+	- zread/zreadretry/zreadintr/zreadc/zreadcintr/zreadn: changed to use
+	  zpopbuf to check whether we have pushed back bytes
+	- zreset,zsyncfd: reset the pushback buffer indices
+
+builtins/read.def
+	- read_mbchar: handle the delimiter being part of an invalid multibyte
+	  character, not just the byte that makes the multibyte character
+	  invalid: keep track of where the delimiter char is in the buffer and
+	  use zungetc to push back that character and everything we read
+	  after it so subsequent buffered (zread) or unbuffered (read) reads
+	  will return them
+
+				    5/2
+				    ---
+lib/readline/display.c,lib/readline/histexpand.c,lib/readline/history.c,
+lib/readline/input.c,lib/readline/search.c,lib/readline/shell.c,
+lib/readline/util.c,lib/readline/readline.c,lib/readline/histfile.c
+	- fixes for issues (unused variables, etc.) uncovered by static
+	  analysis
+	  All from a report by Siteshwar Vashisht <svashisht@redhat.com>
+
+				   5/16
+				   ----
+lib/readline/terminal.c
+	- NEED_EXTERN_PC: add __gnu_hurd__ to the systems that require this
+	  if not using ncurses; rework the structure of the defines
+	  Report from Collin Funk <collin.funk1@gmail.com>
+
+braces.c
+	- brace_gobbler: don't mark an expression as BRACE_SEQ if we've
+	  already seen a comma and marked it as BRACE_COMMA, so we treat
+	  it as a comma brace expansion.
+	  From a report by Sam James <sam@gentoo.org>
+
+support/install-sh
+	- new version from coreutils-git (2024-12-03.03); renamed from install.sh
+
+aclocal.m4
+	- AM_PROG_INSTALL_SH, AM_PROG_INSTALL_STRIP: added from automake
+
+configure.ac
+	- call AM_PROG_INSTALL_SH, AM_PROG_INSTALL_STRIP
+
+Makefile.in
+	- STRIP: let configure substitute it from AC_CHECK_TOOL result
+	- INSTALL_STRIP_PROGRAM: let configure substitute it from
+	  AM_PROG_INSTALL_STRIP
+	- install-strip: change to set INSTALL_PROGRAM=${INSTALL_STRIP_PROGRAM}
+	  to avoid hard-coding `-s' in the recipe
+	  All from a report by NR <nroycea+gnu@gmail.com>
+
+				   5/18
+				   ----
+subst.c
+	- param_expand: if we expand a nameref that references an unset array
+	  variable reference, make sure we enforce `nounset', with the usual
+	  exceptions for `@' and `*' subscripts
+	  From a report from Emanuele Torre <torreemanuele6@gmail.com>
+
+				   5/22
+				   ----
+buildconf.h.in
+	- add additional defines for conservative ISO C/POSIX environment
+	- add HAVE_C_BOOL define in case someone cross-compiles with a C23
+	  compiler
+	  From a report by Bruce Dubbs <bdubbs@linuxfromscratch.org>
+
+builtins/mkbuiltins.c
+	- include buildconf.h instead of having separate defines when
+	  cross-compiling
@@ -1,4 +1,3 @@
-
 				 12/6/2020
 				 ---------

@@ -11103,3 +11102,169 @@ lib/sh/gettimeofday.c
 	- updated from version in gnulib

 [bash-5.3-rc1 frozen]
+
+				    4/4
+				    ---
+examples/loadables/fltexpr.c
+	- add support for function calls; support almost all math function
+	  calls in math.h
+	- add support for pi, gamma, e mathematical constants
+
+				    4/7
+				    ---
+doc/bash.1,doc/bashref.texi
+	- HISTFILESIZE: note that the history file will contain complete
+	  history entries whose lines may total slightly more than
+	  $HISTFILESIZE if the entries contain multiple lines
+	  From a report from Jens Schmidt <farblos@vodafonemail.de>
+	- export: note that you can use -f with -p to display exported functions
+	  From a report from Duncan Roe <duncan_roe@optusnet.com.au>
+
+builtins/history.def
+	- add history -d start-end to the long doc
+	  From a report from Duncan Roe <duncan_roe@optusnet.com.au>
+
+				    4/9
+				    ---
+lib/readline/histfile.c
+	- read_history_range: changes to not skip blank lines if we are
+	  reading a history file with multiline history entries.
+	  From a report by Jens Schmidt <farblos@vodafonemail.de>
+
+				   4/11
+				   ----
+bashline.c
+	- attempt_shell_completion: move the check for char_is_quoted from
+	  check_redir to the caller, set in_command_position to 0 if the
+	  command separator is quoted
+	  From https://savannah.gnu.org/support/?111224 david@mandelberg.org
+	- check_extglob: break check for extended glob out into separate
+	  function, call from attempted_shell_completion, set in_command_position
+	  to -1 if it returns 1, as with the old call to check_redir
+
+				   4/21
+				   ----
+builtins/read.def
+	- read_mbchar: if we read a delimiter character that makes an
+	  incomplete multibyte character into an invalid multibyte character,
+	  only push the delimiter back if we read that character ourselves
+	  (i > 1).
+	  Report from Greg Wooledge <greg@wooledge.org>
+
+				   4/23
+				   ----
+parse.y
+	- pop_delimiter: only decrement delimiter_depth if it's > 0, since
+	  reset_parser() may have set it to 0 after the matching call to
+	  push_delimiter
+	  Report from Grisha Levit <grishalevit@gmail.com> based on a report
+	  from Александр Ушаков <aushakov@astralinux.ru>
+
+				   4/25
+				   ----
+parse.y
+	- read_a_line: if the shell is interactive, and not reading from a
+	  string, check whether a previous call to shell_getc has set
+	  EOF_Reached and return EOF in this case, after resetting the
+	  current token to '\n'. This makes EOFs that are not the first
+	  character on the line `sticky' instead of just token delimiters.
+	  From https://savannah.gnu.org/bugs/?67045
+	- history_delimiting_chars: if it looks like we just finished a
+	  subshell, and the line we're adding begins with an operator that
+	  can't follow a semicolon, return a newline
+	  From https://savannah.gnu.org/patch/?10517
+
+				   4/28
+				   ----
+parse.y
+	- parse_arith_command: if the character after the first right paren
+	  isn't a right paren, making the construct a nested subshell, push
+	  that character back and return the subshell command as the current
+	  token string, which we push onto the pushed string list. Reading
+	  one character more can cause synchronization problems with backslash
+	  newline, among other things.
+	  From https://savannah.gnu.org/patch/?10517
+
+				   4/29
+				   ----
+builtins/evalstring.c
+	- parse_string: only run the top-level unwind-protects if we're
+	  actually going to be calling jump_to_top_level(); otherwise let
+	  xparse_dolparen take care of it
+	  From a report by Александр Ушаков <aushakov@astralinux.ru>
+
+				    5/1
+				    ---
+lib/sh/zread.c
+	- zungetc: rework to use a local 16-byte buffer so we can push back
+	  multiple characters whether we use read or zread
+	- zread/zreadretry/zreadintr/zreadc/zreadcintr/zreadn: changed to use
+	  zpopbuf to check whether we have pushed back bytes
+	- zreset,zsyncfd: reset the pushback buffer indices
+
+builtins/read.def
+	- read_mbchar: handle the delimiter being part of an invalid multibyte
+	  character, not just the byte that makes the multibyte character
+	  invalid: keep track of where the delimiter char is in the buffer and
+	  use zungetc to push back that character and everything we read
+	  after it so subsequent buffered (zread) or unbuffered (read) reads
+	  will return them
+
+				    5/2
+				    ---
+lib/readline/display.c,lib/readline/histexpand.c,lib/readline/history.c,
+lib/readline/input.c,lib/readline/search.c,lib/readline/shell.c,
+lib/readline/util.c,lib/readline/readline.c,lib/readline/histfile.c
+	- fixes for issues (unused variables, etc.) uncovered by static
+	  analysis
+	  All from a report by Siteshwar Vashisht <svashisht@redhat.com>
+
+				   5/16
+				   ----
+lib/readline/terminal.c
+	- NEED_EXTERN_PC: add __gnu_hurd__ to the systems that require this
+	  if not using ncurses; rework the structure of the defines
+	  Report from Collin Funk <collin.funk1@gmail.com>
+
+braces.c
+	- brace_gobbler: don't mark an expression as BRACE_SEQ if we've
+	  already seen a comma and marked it as BRACE_COMMA, so we treat
+	  it as a comma brace expansion.
+	  From a report by Sam James <sam@gentoo.org>
+
+support/install-sh
+	- new version from coreutils-git (2024-12-03.03); renamed from install.sh
+
+aclocal.m4
+	- AM_PROG_INSTALL_SH, AM_PROG_INSTALL_STRIP: added from automake
+
+configure.ac
+	- call AM_PROG_INSTALL_SH, AM_PROG_INSTALL_STRIP
+
+Makefile.in
+	- STRIP: let configure substitute it from AC_CHECK_TOOL result
+	- INSTALL_STRIP_PROGRAM: let configure substitute it from
+	  AM_PROG_INSTALL_STRIP
+	- install-strip: change to set INSTALL_PROGRAM=${INSTALL_STRIP_PROGRAM}
+	  to avoid hard-coding `-s' in the recipe
+	  All from a report by NR <nroycea+gnu@gmail.com>
+
+				   5/18
+				   ----
+subst.c
+	- param_expand: if we expand a nameref that references an unset array
+	  variable reference, make sure we enforce `nounset', with the usual
+	  exceptions for `@' and `*' subscripts
+	  From a report from Emanuele Torre <torreemanuele6@gmail.com>
+
+				   5/22
+				   ----
+buildconf.h.in
+	- add additional defines for conservative ISO C/POSIX environment
+	- add HAVE_C_BOOL define in case someone cross-compiles with a C23
+	  compiler
+	  From a report by Bruce Dubbs <bdubbs@linuxfromscratch.org>
+
+builtins/mkbuiltins.c
+	- include buildconf.h instead of having separate defines when
+	  cross-compiling
@@ -741,7 +741,7 @@ support/zecho.c		f
 support/xcase.c		f
 support/SYMLINKS	f
 support/fixlinks	f	755
-support/install.sh	f	755
+support/install-sh	f	755
 support/texi2dvi	f	755
 support/texi2html	f	755
 #support/xenix-link.sh	f	755
@@ -1294,6 +1294,7 @@ tests/history5.sub	f
 tests/history6.sub	f
 tests/history7.sub	f
 tests/history8.sub	f
+tests/history9.sub	f
 tests/ifs.tests		f
 tests/ifs.right		f
 tests/ifs1.sub		f
@@ -1366,6 +1367,7 @@ tests/nameref21.sub	f
 tests/nameref22.sub	f
 tests/nameref23.sub	f
 tests/nameref24.sub	f
+tests/nameref25.sub	f
 tests/nameref.right	f
 tests/new-exp.tests	f
 tests/new-exp1.sub	f
@@ -1,4 +1,4 @@
-# Makefile for bash-5.3, version 5.8
+# Makefile for bash-5.3, version 5.10
 #
 # Copyright (C) 1996-2025 Free Software Foundation, Inc.

@@ -79,15 +79,18 @@ AR = @AR@
 ARFLAGS = @ARFLAGS@
 RANLIB = @RANLIB@
 SIZE = @SIZE@
-STRIP = strip
+STRIP = @STRIP@

 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALLMODE= -m 0755
 INSTALLMODE2 = -m 0555

+install_sh = @install_sh@
+
 CTAGS = ctags
 CTAGSFLAGS = -x
 ETAGS = etags
@@ -923,7 +926,7 @@ install:	.made installdirs
 	-( cd $(LOADABLES_DIR) && $(MAKE) $(BASH_MAKEFLAGS) DESTDIR=$(DESTDIR) $@ )

 install-strip:
-	$(MAKE) $(BASH_MAKEFLAGS) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' \
+	$(MAKE) $(BASH_MAKEFLAGS) INSTALL_PROGRAM='$(INSTALL_STRIP_PROGRAM)' \
 		prefix=${prefix} exec_prefix=${exec_prefix} \
 		DESTDIR=$(DESTDIR) install

@@ -146,6 +146,9 @@ uu. If `exit' is run in a trap and not supplied an exit status argument, it
 vv. There is a new `fltexpr' builtin to perform floating-point arithmetic
    similarly to `let'.

+ww. The `install-strip' and `strip' Makefile targets now deal with cross-
+    compiling.
+
 2. New Features in Readline

 a. Output a newline if there is no prompt and readline reads an empty line.
@@ -2240,3 +2240,68 @@ else
 fi
 AC_DEFINE_UNQUOTED([FNMATCH_EQUIV_FALLBACK], [$bash_cv_fnmatch_equiv_value], [Whether fnmatch can be used for bracket equivalence classes])
 ])
+
+AC_DEFUN([BASH_FUNC_STRCHRNUL],
+[
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+  AC_CACHE_CHECK([whether strchrnul works],
+      [bash_cv_func_strchrnul_works],
+      [AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <string.h>
+]],
+[[const char *buf = "abc";
+      return strchrnul (buf, 'd') != buf + 3;
+]]
+)],
+[bash_cv_func_strchrnul_works=yes], [bash_cv_func_strchrnul_works=no],
+[bash_cv_func_strchrnul_works=no]
+)])
+
+if test "$bash_cv_func_strchrnul_works" = "no"; then
+AC_LIBOBJ([strchrnul])
+fi
+])
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+#if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+#fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+AC_DEFUN([AM_AUX_DIR_EXPAND],
+[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+])
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+AC_SUBST([install_sh])])
@@ -1422,6 +1422,22 @@ bash_spell_correct_shellword (int count, int key)
 #define COMMAND_SEPARATORS_PLUS_WS ";|&{(` \t"
 /* )} */ 

+static inline int
+check_extglob (int ti)
+{
+#if defined (EXTENDED_GLOB)
+  int this_char, prev_char;
+
+  this_char = rl_line_buffer[ti];
+  prev_char = (ti > 0) ? rl_line_buffer[ti - 1] : 0;
+
+  if (extended_glob && ti > 0 && this_char == '(' && /*)*/
+      member (prev_char, "?*+@!") && char_is_quoted (rl_line_buffer, ti - 1) == 0)
+    return (1);
+#endif
+  return (0);
+}
+
 /* check for redirections and other character combinations that are not
   command separators */
 static inline int
@@ -1440,27 +1456,11 @@ check_redir (int ti)
    return (1);
  else if (this_char == '{' && prev_char == '$' && FUNSUB_CHAR (next_char) == 0) /*}*/
    return (1);
-#if 0	/* Not yet */
-  else if (this_char == '(' && prev_char == '$') /*)*/
-    return (1);
-  else if (this_char == '(' && prev_char == '<') /*)*/
-    return (1);
-#if defined (EXTENDED_GLOB)
-  else if (extended_glob && this_char == '(' && prev_char == '!') /*)*/
-    return (1);
-#endif
-#endif
-  else if (char_is_quoted (rl_line_buffer, ti))
-    return (1);
+
  return (0);
 }

 #if defined (PROGRAMMABLE_COMPLETION)
-/*
- * XXX - because of the <= start test, and setting os = s+1, this can
- * potentially return os > start.  This is probably not what we want to
- * happen, but fix later after 2.05a-release.
- */
 static int
 find_cmd_start (int start)
 {
@@ -1638,9 +1638,13 @@ attempt_shell_completion (const char *text, int start, int end)
    }
  else if (member (rl_line_buffer[ti], command_separator_chars))
    {
-      in_command_position++;
+      if (char_is_quoted (rl_line_buffer, ti) == 0)
+	in_command_position++;

-      if (check_redir (ti) == 1)
+      if (in_command_position && rl_line_buffer[ti] == '(' && check_extglob (ti) == 1) /*)*/
+	in_command_position = -1;
+
+      if (in_command_position && check_redir (ti) == 1)
 	in_command_position = -1;	/* sentinel that we're not the first word on the line */
    }
  else
@@ -783,8 +783,9 @@ comsub:
 	  commas++;
 	}
      else if (satisfy == '}' && STREQN (text+i, BRACE_SEQ_SPECIFIER, 2) &&
-      		text[i+2] != satisfy && level == 0)
+      		text[i+2] != satisfy && level == 0 && btype == BRACE_NONE)
 	{
+	  /* The check against BRACE_NONE gives the comma higher precedence */
 	  btype = BRACE_SEQ;
 	  commas++;
 	}
@@ -33,6 +33,13 @@
 #define HAVE_LOCALE_H 1

 #define HAVE_UNISTD_H 1
+#define HAVE_STRING_H 1
+#define HAVE_STDLIB_H 1
+
+#define HAVE_RENAME
+
+/* defining this implies a C23 environment */
+#undef HAVE_C_BOOL

 /* Don't assume this; it's from C99; let syntax.h define a replacement */
 /* #undef HAVE_ISBLANK */
@@ -725,7 +725,8 @@ parse_string (char *string, const char *from_file, int flags, COMMAND **cmdp, ch

      if (current_token == yacc_EOF || current_token == shell_eof_token)
 	{
-	  if (current_token == shell_eof_token)
+	  /* check for EOFTOKEN out of paranoia */
+	  if ((parser_state & PST_EOFTOKEN) && (current_token == shell_eof_token))
 	    rewind_input_string ();
 	  break;
 	}
@@ -744,10 +745,10 @@ out:
     us, after doing cleanup */
  if (should_jump_to_top_level)
    {
-      if (parse_and_execute_level == 0)
-	top_level_cleanup ();
      if (code == DISCARD)
 	return -DISCARD;
+      if (parse_and_execute_level == 0)
+	top_level_cleanup ();
      jump_to_top_level (code);
    }

@@ -33,6 +33,8 @@ Options:
  -c	clear the history list by deleting all of the entries
  -d offset	delete the history entry at position OFFSET. Negative
 		offsets count back from the end of the history list
+  -d start-end	delete the history entries beginning at position START
+		through position END.

  -a	append history lines from this session to the history file
  -n	read all history lines not already read from the history file
@@ -23,11 +23,7 @@
 #  include <config.h>
 #else	/* CROSS_COMPILING */
 /* A conservative set of defines based on POSIX/SUS3/XPG6 */
-#  define HAVE_UNISTD_H
-#  define HAVE_STRING_H
-#  define HAVE_STDLIB_H
-
-#  define HAVE_RENAME
+#  include <buildconf.h>
 #endif /* CROSS_COMPILING */

 #if defined (HAVE_UNISTD_H)
@@ -1159,7 +1159,7 @@ static int
 read_mbchar (int fd, char *string, int ind, int ch, int delim, int unbuffered)
 {
  char mbchar[MB_LEN_MAX + 1];
-  int i, n, r;
+  int i, n, r, delim_ind;
  char c;
  size_t ret;
  mbstate_t ps, ps_back;
@@ -1167,7 +1167,8 @@ read_mbchar (int fd, char *string, int ind, int ch, int delim, int unbuffered)

  memset (&ps, '\0', sizeof (mbstate_t));
  memset (&ps_back, '\0', sizeof (mbstate_t));
-  
+
+  delim_ind = 0;
  mbchar[0] = ch;
  i = 1;
  for (n = 0; n <= MB_LEN_MAX; n++)
@@ -1187,19 +1188,24 @@ read_mbchar (int fd, char *string, int ind, int ch, int delim, int unbuffered)
 	    r = zreadc (fd, &c);
 	  if (r <= 0)
 	    goto mbchar_return;
+	  if ((unsigned char)c == delim)
+	    delim_ind = i;
 	  mbchar[i++] = c;	
 	  continue;
 	}
      else if (ret == (size_t)-1)
 	{
-	  /* If we read a delimiter character that makes this an invalid
-	     multibyte character, we can't just add it to the input string
-	     and treat it as a byte. We need to push it back so a subsequent
-	     zread will pick it up. */
-	  if ((unsigned char)c == delim)
+	  /* If we read (i > 1) a delimiter character (delim_ind >= 1)
+	     that is a part of this invalid multibyte character, we can't
+	     just add it to the input string and treat it as a byte.
+	     We need to push it and everything we read after it back so a
+	     subsequent zread will pick it up. */
+	  if (i > 1 && delim_ind >= 1)
 	    {
-	      zungetc ((unsigned char)c);
-	      mbchar[--i] = '\0';		/* unget the delimiter */
+	      size_t j;
+	      for (j = delim_ind; j < i; j++)
+		zungetc ((unsigned char)mbchar[j]);
+	      i = delim_ind;
 	    }
 	  break;		/* invalid multibyte character */
 	}
@@ -50,7 +50,7 @@ extern sh_builtin_func_t *this_shell_builtin;

 $BUILTIN export
 $FUNCTION export_builtin
-$SHORT_DOC export [-fn] [name[=value] ...] or export -p
+$SHORT_DOC export [-fn] [name[=value] ...] or export -p [-f]
 Set export attribute for shell variables.

 Marks each NAME for automatic export to the environment of subsequently
@@ -59,7 +59,7 @@ executed commands.  If VALUE is supplied, assign VALUE before exporting.
 Options:
  -f	refer to shell functions
  -n	remove the export property from each NAME
-  -p	display a list of all exported variables and functions
+  -p	display a list of all exported variables or functions

 An argument of `--' disables further option processing.

@@ -880,6 +880,9 @@
 /* Define if you have the snprintf function.  */
 #undef HAVE_SNPRINTF

+/* Define if you have the statfs function.  */
+#undef HAVE_STATFS
+
 /* Define if you have the strcasecmp function.  */
 #undef HAVE_STRCASECMP

@@ -1,7 +1,7 @@
 #! /bin/sh
-# From configure.ac for Bash 5.3, version 5.076.
+# From configure.ac for Bash 5.3, version 5.080.
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.72 for bash 5.3-rc1.
+# Generated by GNU Autoconf 2.72 for bash 5.3-rc2.
 #
 # Report bugs to <bug-bash@gnu.org>.
 #
@@ -605,8 +605,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='bash'
 PACKAGE_TARNAME='bash'
-PACKAGE_VERSION='5.3-rc1'
-PACKAGE_STRING='bash 5.3-rc1'
+PACKAGE_VERSION='5.3-rc2'
+PACKAGE_STRING='bash 5.3-rc2'
 PACKAGE_BUGREPORT='bug-bash@gnu.org'
 PACKAGE_URL=''

@@ -740,6 +740,9 @@ SED
 MKDIR_P
 SIZE
 MAKE_SHELL
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
 SET_MAKE
 YFLAGS
 YACC
@@ -1465,7 +1468,7 @@ if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
-'configure' configures bash 5.3-rc1 to adapt to many kinds of systems.
+'configure' configures bash 5.3-rc2 to adapt to many kinds of systems.

 Usage: $0 [OPTION]... [VAR=VALUE]...

@@ -1531,7 +1534,7 @@ fi

 if test -n "$ac_init_help"; then
  case $ac_init_help in
-     short | recursive ) echo "Configuration of bash 5.3-rc1:";;
+     short | recursive ) echo "Configuration of bash 5.3-rc2:";;
   esac
  cat <<\_ACEOF

@@ -1739,7 +1742,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
-bash configure 5.3-rc1
+bash configure 5.3-rc2
 generated by GNU Autoconf 2.72

 Copyright (C) 2023 Free Software Foundation, Inc.
@@ -2417,7 +2420,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.

-It was created by bash $as_me 5.3-rc1, which was
+It was created by bash $as_me 5.3-rc2, which was
 generated by GNU Autoconf 2.72.  Invocation command line was

  $ $0$ac_configure_args_raw
@@ -3216,7 +3219,7 @@ ac_config_headers="$ac_config_headers config.h buildconf.h"


 BASHVERS=5.3
-RELSTATUS=rc1
+RELSTATUS=rc2

 case "$RELSTATUS" in
 alp*|bet*|dev*|rc*|releng*|maint*)	DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;;
@@ -6407,6 +6410,132 @@ printf "%s\n" "no" >&6; }
 fi


+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+#if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi ;;
+esac
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+printf "%s\n" "$STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_ac_ct_STRIP+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi ;;
+esac
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+printf "%s\n" "$ac_ct_STRIP" >&6; }
+else
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+#fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+
 case "$ac_cv_prog_YACC" in
 *bison*)	;;
 *)	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: bison not available; needed to process parse.y" >&5
@@ -9228,8 +9357,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
        LIBS=$save_LIBS
        test $gl_pthread_api = yes && break
      done
-      echo "$as_me:9231: gl_pthread_api=$gl_pthread_api" >&5
-      echo "$as_me:9232: LIBPTHREAD=$LIBPTHREAD" >&5
+      echo "$as_me:9360: gl_pthread_api=$gl_pthread_api" >&5
+      echo "$as_me:9361: LIBPTHREAD=$LIBPTHREAD" >&5

      gl_pthread_in_glibc=no
      # On Linux with glibc >= 2.34, libc contains the fully functional
@@ -9255,7 +9384,7 @@ rm -rf conftest*

          ;;
      esac
-      echo "$as_me:9258: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
+      echo "$as_me:9387: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5

      # Test for libpthread by looking for pthread_kill. (Not pthread_self,
      # since it is defined as a macro on OSF/1.)
@@ -9433,7 +9562,7 @@ fi

        fi
      fi
-      echo "$as_me:9436: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
+      echo "$as_me:9565: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether POSIX threads API is available" >&5
 printf %s "checking whether POSIX threads API is available... " >&6; }
@@ -9680,8 +9809,8 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
        LIBS=$save_LIBS
        test $gl_pthread_api = yes && break
      done
-      echo "$as_me:9683: gl_pthread_api=$gl_pthread_api" >&5
-      echo "$as_me:9684: LIBPTHREAD=$LIBPTHREAD" >&5
+      echo "$as_me:9812: gl_pthread_api=$gl_pthread_api" >&5
+      echo "$as_me:9813: LIBPTHREAD=$LIBPTHREAD" >&5

      gl_pthread_in_glibc=no
      # On Linux with glibc >= 2.34, libc contains the fully functional
@@ -9707,7 +9836,7 @@ rm -rf conftest*

          ;;
      esac
-      echo "$as_me:9710: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5
+      echo "$as_me:9839: gl_pthread_in_glibc=$gl_pthread_in_glibc" >&5

      # Test for libpthread by looking for pthread_kill. (Not pthread_self,
      # since it is defined as a macro on OSF/1.)
@@ -9885,7 +10014,7 @@ fi

        fi
      fi
-      echo "$as_me:9888: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
+      echo "$as_me:10017: LIBPMULTITHREAD=$LIBPMULTITHREAD" >&5
    fi
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether POSIX threads API is available" >&5
 printf %s "checking whether POSIX threads API is available... " >&6; }
@@ -10655,7 +10784,6 @@ with_gnu_ld=$acl_cv_prog_gnu_ld



-
                                                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for shared library run path origin" >&5
 printf %s "checking for shared library run path origin... " >&6; }
 if test ${acl_cv_rpath+y}
@@ -15581,6 +15709,12 @@ if test "x$ac_cv_func_setitimer" = xyes
 then :
  printf "%s\n" "#define HAVE_SETITIMER 1" >>confdefs.h

+fi
+ac_fn_c_check_func "$LINENO" "statfs" "ac_cv_func_statfs"
+if test "x$ac_cv_func_statfs" = xyes
+then :
+  printf "%s\n" "#define HAVE_STATFS 1" >>confdefs.h
+
 fi
 ac_fn_c_check_func "$LINENO" "tcgetpgrp" "ac_cv_func_tcgetpgrp"
 if test "x$ac_cv_func_tcgetpgrp" = xyes
@@ -16174,21 +16308,6 @@ esac
 esac
 fi

-ac_fn_c_check_func "$LINENO" "strchrnul" "ac_cv_func_strchrnul"
-if test "x$ac_cv_func_strchrnul" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRCHRNUL 1" >>confdefs.h
-
-else case e in #(
-  e) case " $LIBOBJS " in
-  *" strchrnul.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS strchrnul.$ac_objext"
- ;;
-esac
- ;;
-esac
-fi
-
 ac_fn_c_check_func "$LINENO" "strdup" "ac_cv_func_strdup"
 if test "x$ac_cv_func_strdup" = xyes
 then :
@@ -18997,6 +19116,62 @@ fi

 fi

+
+
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether strchrnul works" >&5
+printf %s "checking whether strchrnul works... " >&6; }
+if test ${bash_cv_func_strchrnul_works+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test "$cross_compiling" = yes
+then :
+  bash_cv_func_strchrnul_works=no
+
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <string.h>
+
+int
+main (void)
+{
+const char *buf = "abc";
+      return strchrnul (buf, 'd') != buf + 3;
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"
+then :
+  bash_cv_func_strchrnul_works=yes
+else case e in #(
+  e) bash_cv_func_strchrnul_works=no ;;
+esac
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $bash_cv_func_strchrnul_works" >&5
+printf "%s\n" "$bash_cv_func_strchrnul_works" >&6; }
+
+if test "$bash_cv_func_strchrnul_works" = "no"; then
+case " $LIBOBJS " in
+  *" strchrnul.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS strchrnul.$ac_objext"
+ ;;
+esac
+
+fi
+
+
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if dup2 fails to clear the close-on-exec flag" >&5
 printf %s "checking if dup2 fails to clear the close-on-exec flag... " >&6; }
 if test ${bash_cv_dup2_broken+y}
@@ -23639,7 +23814,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by bash $as_me 5.3-rc1, which was
+This file was extended by bash $as_me 5.3-rc2, which was
 generated by GNU Autoconf 2.72.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
@@ -23707,7 +23882,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-bash config.status 5.3-rc1
+bash config.status 5.3-rc2
 configured by $0, generated by GNU Autoconf 2.72,
  with options \\"\$ac_cs_config\\"

@@ -21,10 +21,10 @@ dnl Process this file with autoconf to produce a configure script.
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.

-AC_REVISION([for Bash 5.3, version 5.076])dnl
+AC_REVISION([for Bash 5.3, version 5.080])dnl

 define(bashvers, 5.3)
-define(relstatus, rc1)
+define(relstatus, rc2)

 AC_INIT([bash], bashvers-relstatus, [bug-bash@gnu.org])

@@ -32,7 +32,7 @@ dnl make sure we are using a recent autoconf version
 AC_PREREQ(2.69)

 AC_CONFIG_SRCDIR(shell.h)
-dnl where to find install.sh, config.sub, and config.guess
+dnl where to find install-sh, config.sub, and config.guess
 AC_CONFIG_AUX_DIR(./support)
 AC_CONFIG_HEADERS(config.h buildconf.h)

@@ -695,6 +695,9 @@ AC_PROG_RANLIB
 AC_PROG_YACC
 AC_PROG_MAKE_SET

+AM_PROG_INSTALL_SH
+AM_PROG_INSTALL_STRIP
+
 case "$ac_cv_prog_YACC" in
 *bison*)	;;
 *)	AC_MSG_WARN([bison not available; needed to process parse.y]) ;;
@@ -874,7 +877,8 @@ AC_CHECK_FUNCS(dup2 eaccess fcntl getdtablesize getentropy getgroups \
 		gethostname getpagesize getpeername getrandom getrlimit \
 		getrusage gettimeofday kill killpg lstat nanosleep \
 		pselect readlink \
-		select setdtablesize setitimer tcgetpgrp uname ulimit waitpid)
+		select setdtablesize setitimer statfs \
+		tcgetpgrp uname ulimit waitpid)
 AC_REPLACE_FUNCS(rename)

 dnl checks for c library functions
@@ -898,7 +902,6 @@ AC_REPLACE_FUNCS(getcwd memset)
 AC_REPLACE_FUNCS(strcasecmp strcasestr strerror strftime strnlen strpbrk strstr)
 AC_REPLACE_FUNCS(strtod strtol strtoul strtoll strtoull strtoumax)
 AC_REPLACE_FUNCS(dprintf)
-AC_REPLACE_FUNCS(strchrnul)
 AC_REPLACE_FUNCS(strdup)
 AC_REPLACE_FUNCS(strlcpy)
 AC_REPLACE_FUNCS(reallocarray)
@@ -1049,6 +1052,8 @@ if test "$ac_cv_func_lstat" = "no"; then
 BASH_FUNC_LSTAT
 fi

+BASH_FUNC_STRCHRNUL
+
 dnl behavior of system calls and library functions
 BASH_FUNC_DUP2_CLOEXEC_CHECK
 BASH_SYS_PGRP_SYNC
@@ -5,7 +5,7 @@
 .\"	Case Western Reserve University
 .\"	chet.ramey@case.edu
 .\"
-.\"	Last Change: Mon Feb 24 16:09:49 EST 2025
+.\"	Last Change: Mon Apr  7 16:59:13 EDT 2025
 .\"
 .\" For bash_builtins, strip all but "SHELL BUILTIN COMMANDS" section
 .\" For rbash, strip all but "RESTRICTED SHELL" section
@@ -21,7 +21,7 @@
 .ds zY \" empty
 .if \n(zZ=1 .ig zZ
 .if \n(zY=1 .ig zY
-.TH BASH 1 "2025 February 24" "GNU Bash 5.3"
+.TH BASH 1 "2025 April 7" "GNU Bash 5.3"
 .\"
 .ie \n(.g \{\
 .ds ' \(aq
@@ -1449,7 +1449,7 @@ is applied to an array variable using compound assignment
 below),
 the variable's value is not unset
 (as it is when using
-.@ = ),
+.Q = ),
 and new values are appended to the array
 beginning at one greater than the array's maximum index (for indexed arrays)
 or added as additional key\-value pairs in an associative array.
@@ -2617,8 +2617,13 @@ the shell does not save the command history when it exits.
 .B HISTFILESIZE
 The maximum number of lines contained in the history file.
 When this variable is assigned a value, the history file is truncated,
-if necessary, to contain no more than that number of lines
+if necessary, to contain no more than
+the number of history entries
+that total no more than that number of lines
 by removing the oldest entries.
+If the history list contains multi-line entries,
+the history file may contain more lines than this maximum
+to avoid leaving partial history entries.
 The history file is also truncated to this size after
 writing it when a shell exits or by the
 .B \%history
@@ -10174,7 +10179,7 @@ is executed before the shell terminates.
 \fBexport\fP [\fB\-fn\fP\^] [\fIname\fP[=\fIvalue\fP]] .\|.\|.
 .PD 0
 .TP
-.B export \-p
+.B export \-p [\fB\-f\fP\^]
 .PD
 The supplied
 .I names
@@ -10191,10 +10196,13 @@ The
 option unexports, or removes the export attribute, from each \fIname\fP.
 If no
 .I names
-are given, or if the
+are given, or if only the
 .B \-p
-option is supplied, \fBexport\fP prints a list of names of all exported
+option is supplied,
+\fBexport\fP displays a list of names of all exported
 variables on the standard output.
+Using \fB\-p\fP and \fB\-f\fP together displays exported functions.
+The \fB\-p\fP option displays output in a form that may be reused as input.
 .IP
 \fBexport\fP allows the value of a variable to be set when it is exported
 or unexported by following the variable name with =\fIvalue\fP.
@@ -3,7 +3,7 @@
 </HEAD>
 <BODY><TABLE WIDTH=100%>
 <TR>
-<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2025 February 24<TH ALIGN=RIGHT width=33%>BASH(1)
+<TH ALIGN=LEFT width=33%>BASH(1)<TH ALIGN=CENTER width=33%>2025 April 7<TH ALIGN=RIGHT width=33%>BASH(1)
 </TR>
 </TABLE>
 <BR><A HREF="#index">Index</A>
@@ -3291,8 +3291,13 @@ the shell does not save the command history when it exits.
 <DD>
 The maximum number of lines contained in the history file.
 When this variable is assigned a value, the history file is truncated,
-if necessary, to contain no more than that number of lines
+if necessary, to contain no more than
+the number of history entries
+that total no more than that number of lines
 by removing the oldest entries.
+If the history list contains multi-line entries,
+the history file may contain more lines than this maximum
+to avoid leaving partial history entries.
 The history file is also truncated to this size after
 writing it when a shell exits or by the
 <B>history</B>
@@ -12740,7 +12745,7 @@ Any trap on
 is executed before the shell terminates.
 <DT><B>export</B> [<B>-fn</B>] [<I>name</I>[=<I>value</I>]] ...<DD>

-<DT><B>export -p</B>
+<DT><B>export -p [-f</B>]

 <DD>

@@ -12764,11 +12769,14 @@ option unexports, or removes the export attribute, from each <I>name</I>.
 If no
 <I>names</I>

-are given, or if the
+are given, or if only the
 <B>-p</B>

-option is supplied, <B>export</B> prints a list of names of all exported
+option is supplied,
+<B>export</B> displays a list of names of all exported
 variables on the standard output.
+Using <B>-p</B> and <B>-f</B> together displays exported functions.
+The <B>-p</B> option displays output in a form that may be reused as input.
 <DT><DD>
 <B>export</B> allows the value of a variable to be set when it is exported
 or unexported by following the variable name with =<I>value</I>.
@@ -16813,7 +16821,7 @@ Array variables may not (yet) be exported.
 <HR>
 <TABLE WIDTH=100%>
 <TR>
-<TH ALIGN=LEFT width=33%>GNU Bash 5.3<TH ALIGN=CENTER width=33%>2025 February 24<TH ALIGN=RIGHT width=33%>BASH(1)
+<TH ALIGN=LEFT width=33%>GNU Bash 5.3<TH ALIGN=CENTER width=33%>2025 April 7<TH ALIGN=RIGHT width=33%>BASH(1)
 </TR>
 </TABLE>
 <HR>
@@ -16922,7 +16930,7 @@ Array variables may not (yet) be exported.
 <DT><A HREF="#lbDJ">BUGS</A><DD>
 </DL>
 <HR>
-This document was created by man2html from bash.1.<BR>
-Time: 31 March 2025 10:28:01 EDT
+This document was created by man2html from /usr/local/src/bash/bash-20250502/doc/bash.1.<BR>
+Time: 04 May 2025 17:25:09 EDT
 </BODY>
 </HTML>
@@ -1,9 +1,9 @@
 This is bash.info, produced by makeinfo version 7.1 from bashref.texi.

 This text is a brief description of the features that are present in the
-Bash shell (version 5.3, 24 February 2025).
+Bash shell (version 5.3, 7 April 2025).

-   This is Edition 5.3, last updated 24 February 2025, of ‘The GNU Bash
+   This is Edition 5.3, last updated 7 April 2025, of ‘The GNU Bash
 Reference Manual’, for ‘Bash’, Version 5.3.

   Copyright © 1988-2025 Free Software Foundation, Inc.
@@ -26,10 +26,10 @@ Bash Features
 *************

 This text is a brief description of the features that are present in the
-Bash shell (version 5.3, 24 February 2025).  The Bash home page is
+Bash shell (version 5.3, 7 April 2025).  The Bash home page is
 <http://www.gnu.org/software/bash/>.

-   This is Edition 5.3, last updated 24 February 2025, of ‘The GNU Bash
+   This is Edition 5.3, last updated 7 April 2025, of ‘The GNU Bash
 Reference Manual’, for ‘Bash’, Version 5.3.

   Bash contains features that appear in other popular shells, and some
@@ -3597,9 +3597,10 @@ standard.
     to shell functions; otherwise the names refer to shell variables.

     The ‘-n’ option means to unexport each name: no longer mark it for
-     export.  If no NAMEs are supplied, or if the ‘-p’ option is given,
-     ‘export’ displays a list of names of all exported variables on the
-     standard output.  The ‘-p’ option displays output in a form that
+     export.  If no NAMEs are supplied, or if only the ‘-p’ option is
+     given, ‘export’ displays a list of names of all exported variables
+     on the standard output.  Using ‘-p’ and ‘-f’ together displays
+     exported functions.  The ‘-p’ option displays output in a form that
     may be reused as input.

     ‘export’ allows the value of a variable to be set at the same time
@@ -6104,13 +6105,16 @@ Variables::).
 ‘HISTFILESIZE’
     The maximum number of lines contained in the history file.  When
     this variable is assigned a value, the history file is truncated,
-     if necessary, to contain no more than that number of lines by
-     removing the oldest entries.  The history file is also truncated to
-     this size after writing it when a shell exits or by the ‘history’
-     builtin.  If the value is 0, the history file is truncated to zero
-     size.  Non-numeric values and numeric values less than zero inhibit
-     truncation.  The shell sets the default value to the value of
-     ‘HISTSIZE’ after reading any startup files.
+     if necessary, to contain no more than the number of history entries
+     that total no more than that number of lines by removing the oldest
+     entries.  If the history list contains multi-line entries, the
+     history file may contain more lines than this maximum to avoid
+     leaving partial history entries.  The history file is also
+     truncated to this size after writing it when a shell exits or by
+     the ‘history’ builtin.  If the value is 0, the history file is
+     truncated to zero size.  Non-numeric values and numeric values less
+     than zero inhibit truncation.  The shell sets the default value to
+     the value of ‘HISTSIZE’ after reading any startup files.

 ‘HISTIGNORE’
     A colon-separated list of patterns used to decide which command
@@ -12825,7 +12829,7 @@ D.1 Index of Shell Builtin Commands
 * .:                                     Bourne Shell Builtins.
                                                              (line  17)
 * [:                                     Bourne Shell Builtins.
-                                                              (line 338)
+                                                              (line 339)
 * alias:                                 Bash Builtins.       (line  11)
 * bg:                                    Job Control Builtins.
                                                              (line   7)
@@ -12861,15 +12865,15 @@ D.1 Index of Shell Builtin Commands
 * export:                                Bourne Shell Builtins.
                                                              (line 152)
 * false:                                 Bourne Shell Builtins.
-                                                              (line 174)
+                                                              (line 175)
 * fc:                                    Bash History Builtins.
                                                              (line  10)
 * fg:                                    Job Control Builtins.
                                                              (line  17)
 * getopts:                               Bourne Shell Builtins.
-                                                              (line 179)
+                                                              (line 180)
 * hash:                                  Bourne Shell Builtins.
-                                                              (line 231)
+                                                              (line 232)
 * help:                                  Bash Builtins.       (line 375)
 * history:                               Bash History Builtins.
                                                              (line  59)
@@ -12885,38 +12889,38 @@ D.1 Index of Shell Builtin Commands
                                                              (line  37)
 * printf:                                Bash Builtins.       (line 488)
 * pushd:                                 Directory Stack Builtins.
-                                                              (line  70)
+                                                              (line  71)
 * pwd:                                   Bourne Shell Builtins.
-                                                              (line 263)
+                                                              (line 264)
 * read:                                  Bash Builtins.       (line 558)
 * readarray:                             Bash Builtins.       (line 669)
 * readonly:                              Bourne Shell Builtins.
-                                                              (line 275)
+                                                              (line 276)
 * return:                                Bourne Shell Builtins.
-                                                              (line 300)
+                                                              (line 301)
 * set:                                   The Set Builtin.     (line  11)
 * shift:                                 Bourne Shell Builtins.
-                                                              (line 325)
+                                                              (line 326)
 * shopt:                                 The Shopt Builtin.   (line   9)
 * source:                                Bash Builtins.       (line 678)
 * suspend:                               Job Control Builtins.
                                                              (line 139)
 * test:                                  Bourne Shell Builtins.
-                                                              (line 338)
+                                                              (line 339)
 * times:                                 Bourne Shell Builtins.
-                                                              (line 438)
+                                                              (line 439)
 * trap:                                  Bourne Shell Builtins.
-                                                              (line 444)
+                                                              (line 445)
 * true:                                  Bourne Shell Builtins.
-                                                              (line 510)
+                                                              (line 511)
 * type:                                  Bash Builtins.       (line 683)
 * typeset:                               Bash Builtins.       (line 720)
 * ulimit:                                Bash Builtins.       (line 726)
 * umask:                                 Bourne Shell Builtins.
-                                                              (line 515)
+                                                              (line 516)
 * unalias:                               Bash Builtins.       (line 834)
 * unset:                                 Bourne Shell Builtins.
-                                                              (line 533)
+                                                              (line 534)
 * wait:                                  Job Control Builtins.
                                                              (line  86)

@@ -13093,51 +13097,51 @@ D.3 Parameter and Variable Index
 * HISTCONTROL:                           Bash Variables.      (line 443)
 * HISTFILE:                              Bash Variables.      (line 461)
 * HISTFILESIZE:                          Bash Variables.      (line 467)
-* HISTIGNORE:                            Bash Variables.      (line 478)
+* HISTIGNORE:                            Bash Variables.      (line 481)
 * history-preserve-point:                Readline Init File Syntax.
                                                              (line 234)
 * history-size:                          Readline Init File Syntax.
                                                              (line 240)
-* HISTSIZE:                              Bash Variables.      (line 502)
-* HISTTIMEFORMAT:                        Bash Variables.      (line 509)
+* HISTSIZE:                              Bash Variables.      (line 505)
+* HISTTIMEFORMAT:                        Bash Variables.      (line 512)
 * HOME:                                  Bourne Shell Variables.
                                                              (line  13)
 * horizontal-scroll-mode:                Readline Init File Syntax.
                                                              (line 250)
-* HOSTFILE:                              Bash Variables.      (line 518)
-* HOSTNAME:                              Bash Variables.      (line 529)
-* HOSTTYPE:                              Bash Variables.      (line 532)
+* HOSTFILE:                              Bash Variables.      (line 521)
+* HOSTNAME:                              Bash Variables.      (line 532)
+* HOSTTYPE:                              Bash Variables.      (line 535)
 * IFS:                                   Bourne Shell Variables.
                                                              (line  18)
-* IGNOREEOF:                             Bash Variables.      (line 535)
+* IGNOREEOF:                             Bash Variables.      (line 538)
 * input-meta:                            Readline Init File Syntax.
                                                              (line 258)
-* INPUTRC:                               Bash Variables.      (line 544)
-* INSIDE_EMACS:                          Bash Variables.      (line 548)
+* INPUTRC:                               Bash Variables.      (line 547)
+* INSIDE_EMACS:                          Bash Variables.      (line 551)
 * isearch-terminators:                   Readline Init File Syntax.
                                                              (line 269)
 * keymap:                                Readline Init File Syntax.
                                                              (line 276)
 * LANG:                                  Creating Internationalized Scripts.
                                                              (line  51)
-* LANG <1>:                              Bash Variables.      (line 554)
-* LC_ALL:                                Bash Variables.      (line 558)
-* LC_COLLATE:                            Bash Variables.      (line 562)
-* LC_CTYPE:                              Bash Variables.      (line 569)
+* LANG <1>:                              Bash Variables.      (line 557)
+* LC_ALL:                                Bash Variables.      (line 561)
+* LC_COLLATE:                            Bash Variables.      (line 565)
+* LC_CTYPE:                              Bash Variables.      (line 572)
 * LC_MESSAGES:                           Creating Internationalized Scripts.
                                                              (line  51)
-* LC_MESSAGES <1>:                       Bash Variables.      (line 574)
-* LC_NUMERIC:                            Bash Variables.      (line 578)
-* LC_TIME:                               Bash Variables.      (line 582)
-* LINENO:                                Bash Variables.      (line 586)
-* LINES:                                 Bash Variables.      (line 593)
-* MACHTYPE:                              Bash Variables.      (line 599)
+* LC_MESSAGES <1>:                       Bash Variables.      (line 577)
+* LC_NUMERIC:                            Bash Variables.      (line 581)
+* LC_TIME:                               Bash Variables.      (line 585)
+* LINENO:                                Bash Variables.      (line 589)
+* LINES:                                 Bash Variables.      (line 596)
+* MACHTYPE:                              Bash Variables.      (line 602)
 * MAIL:                                  Bourne Shell Variables.
                                                              (line  24)
-* MAILCHECK:                             Bash Variables.      (line 603)
+* MAILCHECK:                             Bash Variables.      (line 606)
 * MAILPATH:                              Bourne Shell Variables.
                                                              (line  29)
-* MAPFILE:                               Bash Variables.      (line 611)
+* MAPFILE:                               Bash Variables.      (line 614)
 * mark-modified-lines:                   Readline Init File Syntax.
                                                              (line 306)
 * mark-symlinked-directories:            Readline Init File Syntax.
@@ -13148,46 +13152,46 @@ D.3 Parameter and Variable Index
                                                              (line 323)
 * meta-flag:                             Readline Init File Syntax.
                                                              (line 258)
-* OLDPWD:                                Bash Variables.      (line 615)
+* OLDPWD:                                Bash Variables.      (line 618)
 * OPTARG:                                Bourne Shell Variables.
                                                              (line  36)
-* OPTERR:                                Bash Variables.      (line 618)
+* OPTERR:                                Bash Variables.      (line 621)
 * OPTIND:                                Bourne Shell Variables.
                                                              (line  40)
-* OSTYPE:                                Bash Variables.      (line 623)
+* OSTYPE:                                Bash Variables.      (line 626)
 * output-meta:                           Readline Init File Syntax.
                                                              (line 328)
 * page-completions:                      Readline Init File Syntax.
                                                              (line 337)
 * PATH:                                  Bourne Shell Variables.
                                                              (line  44)
-* PIPESTATUS:                            Bash Variables.      (line 626)
-* POSIXLY_CORRECT:                       Bash Variables.      (line 636)
-* PPID:                                  Bash Variables.      (line 646)
-* PROMPT_COMMAND:                        Bash Variables.      (line 650)
-* PROMPT_DIRTRIM:                        Bash Variables.      (line 656)
-* PS0:                                   Bash Variables.      (line 662)
+* PIPESTATUS:                            Bash Variables.      (line 629)
+* POSIXLY_CORRECT:                       Bash Variables.      (line 639)
+* PPID:                                  Bash Variables.      (line 649)
+* PROMPT_COMMAND:                        Bash Variables.      (line 653)
+* PROMPT_DIRTRIM:                        Bash Variables.      (line 659)
+* PS0:                                   Bash Variables.      (line 665)
 * PS1:                                   Bourne Shell Variables.
                                                              (line  53)
 * PS2:                                   Bourne Shell Variables.
                                                              (line  58)
-* PS3:                                   Bash Variables.      (line 667)
-* PS4:                                   Bash Variables.      (line 672)
-* PWD:                                   Bash Variables.      (line 680)
-* RANDOM:                                Bash Variables.      (line 683)
-* READLINE_ARGUMENT:                     Bash Variables.      (line 691)
-* READLINE_LINE:                         Bash Variables.      (line 695)
-* READLINE_MARK:                         Bash Variables.      (line 699)
-* READLINE_POINT:                        Bash Variables.      (line 705)
-* REPLY:                                 Bash Variables.      (line 709)
+* PS3:                                   Bash Variables.      (line 670)
+* PS4:                                   Bash Variables.      (line 675)
+* PWD:                                   Bash Variables.      (line 683)
+* RANDOM:                                Bash Variables.      (line 686)
+* READLINE_ARGUMENT:                     Bash Variables.      (line 694)
+* READLINE_LINE:                         Bash Variables.      (line 698)
+* READLINE_MARK:                         Bash Variables.      (line 702)
+* READLINE_POINT:                        Bash Variables.      (line 708)
+* REPLY:                                 Bash Variables.      (line 712)
 * revert-all-at-newline:                 Readline Init File Syntax.
                                                              (line 350)
 * search-ignore-case:                    Readline Init File Syntax.
                                                              (line 357)
-* SECONDS:                               Bash Variables.      (line 713)
-* SHELL:                                 Bash Variables.      (line 723)
-* SHELLOPTS:                             Bash Variables.      (line 728)
-* SHLVL:                                 Bash Variables.      (line 738)
+* SECONDS:                               Bash Variables.      (line 716)
+* SHELL:                                 Bash Variables.      (line 726)
+* SHELLOPTS:                             Bash Variables.      (line 731)
+* SHLVL:                                 Bash Variables.      (line 741)
 * show-all-if-ambiguous:                 Readline Init File Syntax.
                                                              (line 362)
 * show-all-if-unmodified:                Readline Init File Syntax.
@@ -13196,15 +13200,15 @@ D.3 Parameter and Variable Index
                                                              (line 377)
 * skip-completed-text:                   Readline Init File Syntax.
                                                              (line 383)
-* SRANDOM:                               Bash Variables.      (line 743)
+* SRANDOM:                               Bash Variables.      (line 746)
 * TEXTDOMAIN:                            Creating Internationalized Scripts.
                                                              (line  51)
 * TEXTDOMAINDIR:                         Creating Internationalized Scripts.
                                                              (line  51)
-* TIMEFORMAT:                            Bash Variables.      (line 752)
-* TMOUT:                                 Bash Variables.      (line 791)
-* TMPDIR:                                Bash Variables.      (line 803)
-* UID:                                   Bash Variables.      (line 807)
+* TIMEFORMAT:                            Bash Variables.      (line 755)
+* TMOUT:                                 Bash Variables.      (line 794)
+* TMPDIR:                                Bash Variables.      (line 806)
+* UID:                                   Bash Variables.      (line 810)
 * vi-cmd-mode-string:                    Readline Init File Syntax.
                                                              (line 396)
 * vi-ins-mode-string:                    Readline Init File Syntax.
@@ -13599,138 +13603,138 @@ D.5 Concept Index


 Tag Table:
-Node: Top901
-Node: Introduction2842
-Node: What is Bash?3055
-Node: What is a shell?4188
-Node: Definitions6798
-Node: Basic Shell Features10125
-Node: Shell Syntax11349
-Node: Shell Operation12376
-Node: Quoting13667
-Node: Escape Character15005
-Node: Single Quotes15540
-Node: Double Quotes15889
-Node: ANSI-C Quoting17234
-Node: Locale Translation18628
-Node: Creating Internationalized Scripts20031
-Node: Comments24229
-Node: Shell Commands24996
-Node: Reserved Words25935
-Node: Simple Commands26800
-Node: Pipelines27462
-Node: Lists30718
-Node: Compound Commands32590
-Node: Looping Constructs33599
-Node: Conditional Constructs36148
-Node: Command Grouping51218
-Node: Coprocesses52710
-Node: GNU Parallel55396
-Node: Shell Functions56314
-Node: Shell Parameters64762
-Node: Positional Parameters69663
-Node: Special Parameters70753
-Node: Shell Expansions74214
-Node: Brace Expansion76403
-Node: Tilde Expansion79739
-Node: Shell Parameter Expansion82694
-Node: Command Substitution103337
-Node: Arithmetic Expansion106866
-Node: Process Substitution108042
-Node: Word Splitting109150
-Node: Filename Expansion111594
-Node: Pattern Matching114818
-Node: Quote Removal120541
-Node: Redirections120845
-Node: Executing Commands131108
-Node: Simple Command Expansion131775
-Node: Command Search and Execution133883
-Node: Command Execution Environment136327
-Node: Environment139775
-Node: Exit Status141678
-Node: Signals143736
-Node: Shell Scripts148665
-Node: Shell Builtin Commands151963
-Node: Bourne Shell Builtins154074
-Node: Bash Builtins180644
-Node: Modifying Shell Behavior217568
-Node: The Set Builtin217910
-Node: The Shopt Builtin229904
-Node: Special Builtins246956
-Node: Shell Variables247945
-Node: Bourne Shell Variables248379
-Node: Bash Variables250887
-Node: Bash Features289792
-Node: Invoking Bash290806
-Node: Bash Startup Files297390
-Node: Interactive Shells302632
-Node: What is an Interactive Shell?303040
-Node: Is this Shell Interactive?303702
-Node: Interactive Shell Behavior304526
-Node: Bash Conditional Expressions308287
-Node: Shell Arithmetic313704
-Node: Aliases317033
-Node: Arrays320167
-Node: The Directory Stack327755
-Node: Directory Stack Builtins328552
-Node: Controlling the Prompt332997
-Node: The Restricted Shell335882
-Node: Bash POSIX Mode338764
-Node: Shell Compatibility Mode357121
-Node: Job Control366128
-Node: Job Control Basics366585
-Node: Job Control Builtins372953
-Node: Job Control Variables379635
-Node: Command Line Editing380866
-Node: Introduction and Notation382569
-Node: Readline Interaction384921
-Node: Readline Bare Essentials386109
-Node: Readline Movement Commands387917
-Node: Readline Killing Commands388913
-Node: Readline Arguments390936
-Node: Searching391993
-Node: Readline Init File394236
-Node: Readline Init File Syntax395539
-Node: Conditional Init Constructs422364
-Node: Sample Init File426749
-Node: Bindable Readline Commands429869
-Node: Commands For Moving431407
-Node: Commands For History433871
-Node: Commands For Text439261
-Node: Commands For Killing443386
-Node: Numeric Arguments446174
-Node: Commands For Completion447326
-Node: Keyboard Macros453022
-Node: Miscellaneous Commands453723
-Node: Readline vi Mode460290
-Node: Programmable Completion461267
-Node: Programmable Completion Builtins470004
-Node: A Programmable Completion Example481741
-Node: Using History Interactively487086
-Node: Bash History Facilities487767
-Node: Bash History Builtins491502
-Node: History Interaction497973
-Node: Event Designators502923
-Node: Word Designators504501
-Node: Modifiers506893
-Node: Installing Bash508830
-Node: Basic Installation509946
-Node: Compilers and Options513822
-Node: Compiling For Multiple Architectures514572
-Node: Installation Names516325
-Node: Specifying the System Type518559
-Node: Sharing Defaults519305
-Node: Operation Controls520019
-Node: Optional Features521038
-Node: Reporting Bugs533418
-Node: Major Differences From The Bourne Shell534775
-Node: GNU Free Documentation License556201
-Node: Indexes581378
-Node: Builtin Index581829
-Node: Reserved Word Index588927
-Node: Variable Index591372
-Node: Function Index608785
-Node: Concept Index622780
+Node: Top893
+Node: Introduction2826
+Node: What is Bash?3039
+Node: What is a shell?4172
+Node: Definitions6782
+Node: Basic Shell Features10109
+Node: Shell Syntax11333
+Node: Shell Operation12360
+Node: Quoting13651
+Node: Escape Character14989
+Node: Single Quotes15524
+Node: Double Quotes15873
+Node: ANSI-C Quoting17218
+Node: Locale Translation18612
+Node: Creating Internationalized Scripts20015
+Node: Comments24213
+Node: Shell Commands24980
+Node: Reserved Words25919
+Node: Simple Commands26784
+Node: Pipelines27446
+Node: Lists30702
+Node: Compound Commands32574
+Node: Looping Constructs33583
+Node: Conditional Constructs36132
+Node: Command Grouping51202
+Node: Coprocesses52694
+Node: GNU Parallel55380
+Node: Shell Functions56298
+Node: Shell Parameters64746
+Node: Positional Parameters69647
+Node: Special Parameters70737
+Node: Shell Expansions74198
+Node: Brace Expansion76387
+Node: Tilde Expansion79723
+Node: Shell Parameter Expansion82678
+Node: Command Substitution103321
+Node: Arithmetic Expansion106850
+Node: Process Substitution108026
+Node: Word Splitting109134
+Node: Filename Expansion111578
+Node: Pattern Matching114802
+Node: Quote Removal120525
+Node: Redirections120829
+Node: Executing Commands131092
+Node: Simple Command Expansion131759
+Node: Command Search and Execution133867
+Node: Command Execution Environment136311
+Node: Environment139759
+Node: Exit Status141662
+Node: Signals143720
+Node: Shell Scripts148649
+Node: Shell Builtin Commands151947
+Node: Bourne Shell Builtins154058
+Node: Bash Builtins180705
+Node: Modifying Shell Behavior217629
+Node: The Set Builtin217971
+Node: The Shopt Builtin229965
+Node: Special Builtins247017
+Node: Shell Variables248006
+Node: Bourne Shell Variables248440
+Node: Bash Variables250948
+Node: Bash Features290072
+Node: Invoking Bash291086
+Node: Bash Startup Files297670
+Node: Interactive Shells302912
+Node: What is an Interactive Shell?303320
+Node: Is this Shell Interactive?303982
+Node: Interactive Shell Behavior304806
+Node: Bash Conditional Expressions308567
+Node: Shell Arithmetic313984
+Node: Aliases317313
+Node: Arrays320447
+Node: The Directory Stack328035
+Node: Directory Stack Builtins328832
+Node: Controlling the Prompt333277
+Node: The Restricted Shell336162
+Node: Bash POSIX Mode339044
+Node: Shell Compatibility Mode357401
+Node: Job Control366408
+Node: Job Control Basics366865
+Node: Job Control Builtins373233
+Node: Job Control Variables379915
+Node: Command Line Editing381146
+Node: Introduction and Notation382849
+Node: Readline Interaction385201
+Node: Readline Bare Essentials386389
+Node: Readline Movement Commands388197
+Node: Readline Killing Commands389193
+Node: Readline Arguments391216
+Node: Searching392273
+Node: Readline Init File394516
+Node: Readline Init File Syntax395819
+Node: Conditional Init Constructs422644
+Node: Sample Init File427029
+Node: Bindable Readline Commands430149
+Node: Commands For Moving431687
+Node: Commands For History434151
+Node: Commands For Text439541
+Node: Commands For Killing443666
+Node: Numeric Arguments446454
+Node: Commands For Completion447606
+Node: Keyboard Macros453302
+Node: Miscellaneous Commands454003
+Node: Readline vi Mode460570
+Node: Programmable Completion461547
+Node: Programmable Completion Builtins470284
+Node: A Programmable Completion Example482021
+Node: Using History Interactively487366
+Node: Bash History Facilities488047
+Node: Bash History Builtins491782
+Node: History Interaction498253
+Node: Event Designators503203
+Node: Word Designators504781
+Node: Modifiers507173
+Node: Installing Bash509110
+Node: Basic Installation510226
+Node: Compilers and Options514102
+Node: Compiling For Multiple Architectures514852
+Node: Installation Names516605
+Node: Specifying the System Type518839
+Node: Sharing Defaults519585
+Node: Operation Controls520299
+Node: Optional Features521318
+Node: Reporting Bugs533698
+Node: Major Differences From The Bourne Shell535055
+Node: GNU Free Documentation License556481
+Node: Indexes581658
+Node: Builtin Index582109
+Node: Reserved Word Index589207
+Node: Variable Index591652
+Node: Function Index609065
+Node: Concept Index623060

 End Tag Table

@@ -4,9 +4,9 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 <!-- This text is a brief description of the features that are present in
-the Bash shell (version 5.3, 24 February 2025).
+the Bash shell (version 5.3, 7 April 2025).

-This is Edition 5.3, last updated 24 February 2025,
+This is Edition 5.3, last updated 7 April 2025,
 of The GNU Bash Reference Manual,
 for Bash, Version 5.3.

@@ -77,10 +77,10 @@ Next: <a href="#Introduction" accesskey="n" rel="next">Introduction</a>, Previou
 <h1 class="top" id="Bash-Features-1"><span>Bash Features<a class="copiable-link" href="#Bash-Features-1"> &para;</a></span></h1>

 <p>This text is a brief description of the features that are present in
-the Bash shell (version 5.3, 24 February 2025).
+the Bash shell (version 5.3, 7 April 2025).
 The Bash home page is <a class="url" href="http://www.gnu.org/software/bash/">http://www.gnu.org/software/bash/</a>.
 </p>
-<p>This is Edition 5.3, last updated 24 February 2025,
+<p>This is Edition 5.3, last updated 7 April 2025,
 of <cite class="cite">The GNU Bash Reference Manual</cite>,
 for <code class="code">Bash</code>, Version 5.3.
 </p>
@@ -4887,9 +4887,11 @@ refer to shell functions; otherwise the names refer to shell variables.
 </p>
 <p>The <samp class="option">-n</samp> option means to unexport each name: no longer mark
 it for export.
-If no <var class="var">name</var>s are supplied, or if the <samp class="option">-p</samp> option is given,
-<code class="code">export</code> displays a list of names of all exported variables on the
-standard output.
+If no <var class="var">name</var>s are supplied, or if only
+the <samp class="option">-p</samp> option is given,
+<code class="code">export</code> displays a list of names of all exported
+variables on the standard output.
+Using <samp class="option">-p</samp> and <samp class="option">-f</samp> together displays exported functions.
 The <samp class="option">-p</samp> option displays output in a form that may be reused as input.
 </p>
 <p><code class="code">export</code> allows the value of a variable to be set at the same time
@@ -8107,8 +8109,13 @@ the shell does not save the command history when it exits.
 <dt><a id="index-HISTFILESIZE"></a><span><code class="code">HISTFILESIZE</code><a class="copiable-link" href="#index-HISTFILESIZE"> &para;</a></span></dt>
 <dd><p>The maximum number of lines contained in the history file.
 When this variable is assigned a value, the history file is truncated,
-if necessary, to contain no more than that number of lines
+if necessary, to contain no more than
+the number of history entries
+that total no more than that number of lines
 by removing the oldest entries.
+If the history list contains multi-line entries,
+the history file may contain more lines than this maximum
+to avoid leaving partial history entries.
 The history file is also truncated to this size after
 writing it when a shell exits or by the <code class="code">history</code> builtin.
 If the value is 0, the history file is truncated to zero size.
@@ -2,9 +2,9 @@ This is bashref.info, produced by makeinfo version 7.1 from
 bashref.texi.

 This text is a brief description of the features that are present in the
-Bash shell (version 5.3, 24 February 2025).
+Bash shell (version 5.3, 7 April 2025).

-   This is Edition 5.3, last updated 24 February 2025, of ‘The GNU Bash
+   This is Edition 5.3, last updated 7 April 2025, of ‘The GNU Bash
 Reference Manual’, for ‘Bash’, Version 5.3.

   Copyright © 1988-2025 Free Software Foundation, Inc.
@@ -27,10 +27,10 @@ Bash Features
 *************

 This text is a brief description of the features that are present in the
-Bash shell (version 5.3, 24 February 2025).  The Bash home page is
+Bash shell (version 5.3, 7 April 2025).  The Bash home page is
 <http://www.gnu.org/software/bash/>.

-   This is Edition 5.3, last updated 24 February 2025, of ‘The GNU Bash
+   This is Edition 5.3, last updated 7 April 2025, of ‘The GNU Bash
 Reference Manual’, for ‘Bash’, Version 5.3.

   Bash contains features that appear in other popular shells, and some
@@ -3598,9 +3598,10 @@ standard.
     to shell functions; otherwise the names refer to shell variables.

     The ‘-n’ option means to unexport each name: no longer mark it for
-     export.  If no NAMEs are supplied, or if the ‘-p’ option is given,
-     ‘export’ displays a list of names of all exported variables on the
-     standard output.  The ‘-p’ option displays output in a form that
+     export.  If no NAMEs are supplied, or if only the ‘-p’ option is
+     given, ‘export’ displays a list of names of all exported variables
+     on the standard output.  Using ‘-p’ and ‘-f’ together displays
+     exported functions.  The ‘-p’ option displays output in a form that
     may be reused as input.

     ‘export’ allows the value of a variable to be set at the same time
@@ -6105,13 +6106,16 @@ Variables::).
 ‘HISTFILESIZE’
     The maximum number of lines contained in the history file.  When
     this variable is assigned a value, the history file is truncated,
-     if necessary, to contain no more than that number of lines by
-     removing the oldest entries.  The history file is also truncated to
-     this size after writing it when a shell exits or by the ‘history’
-     builtin.  If the value is 0, the history file is truncated to zero
-     size.  Non-numeric values and numeric values less than zero inhibit
-     truncation.  The shell sets the default value to the value of
-     ‘HISTSIZE’ after reading any startup files.
+     if necessary, to contain no more than the number of history entries
+     that total no more than that number of lines by removing the oldest
+     entries.  If the history list contains multi-line entries, the
+     history file may contain more lines than this maximum to avoid
+     leaving partial history entries.  The history file is also
+     truncated to this size after writing it when a shell exits or by
+     the ‘history’ builtin.  If the value is 0, the history file is
+     truncated to zero size.  Non-numeric values and numeric values less
+     than zero inhibit truncation.  The shell sets the default value to
+     the value of ‘HISTSIZE’ after reading any startup files.

 ‘HISTIGNORE’
     A colon-separated list of patterns used to decide which command
@@ -12826,7 +12830,7 @@ D.1 Index of Shell Builtin Commands
 * .:                                     Bourne Shell Builtins.
                                                              (line  17)
 * [:                                     Bourne Shell Builtins.
-                                                              (line 338)
+                                                              (line 339)
 * alias:                                 Bash Builtins.       (line  11)
 * bg:                                    Job Control Builtins.
                                                              (line   7)
@@ -12862,15 +12866,15 @@ D.1 Index of Shell Builtin Commands
 * export:                                Bourne Shell Builtins.
                                                              (line 152)
 * false:                                 Bourne Shell Builtins.
-                                                              (line 174)
+                                                              (line 175)
 * fc:                                    Bash History Builtins.
                                                              (line  10)
 * fg:                                    Job Control Builtins.
                                                              (line  17)
 * getopts:                               Bourne Shell Builtins.
-                                                              (line 179)
+                                                              (line 180)
 * hash:                                  Bourne Shell Builtins.
-                                                              (line 231)
+                                                              (line 232)
 * help:                                  Bash Builtins.       (line 375)
 * history:                               Bash History Builtins.
                                                              (line  59)
@@ -12886,38 +12890,38 @@ D.1 Index of Shell Builtin Commands
                                                              (line  37)
 * printf:                                Bash Builtins.       (line 488)
 * pushd:                                 Directory Stack Builtins.
-                                                              (line  70)
+                                                              (line  71)
 * pwd:                                   Bourne Shell Builtins.
-                                                              (line 263)
+                                                              (line 264)
 * read:                                  Bash Builtins.       (line 558)
 * readarray:                             Bash Builtins.       (line 669)
 * readonly:                              Bourne Shell Builtins.
-                                                              (line 275)
+                                                              (line 276)
 * return:                                Bourne Shell Builtins.
-                                                              (line 300)
+                                                              (line 301)
 * set:                                   The Set Builtin.     (line  11)
 * shift:                                 Bourne Shell Builtins.
-                                                              (line 325)
+                                                              (line 326)
 * shopt:                                 The Shopt Builtin.   (line   9)
 * source:                                Bash Builtins.       (line 678)
 * suspend:                               Job Control Builtins.
                                                              (line 139)
 * test:                                  Bourne Shell Builtins.
-                                                              (line 338)
+                                                              (line 339)
 * times:                                 Bourne Shell Builtins.
-                                                              (line 438)
+                                                              (line 439)
 * trap:                                  Bourne Shell Builtins.
-                                                              (line 444)
+                                                              (line 445)
 * true:                                  Bourne Shell Builtins.
-                                                              (line 510)
+                                                              (line 511)
 * type:                                  Bash Builtins.       (line 683)
 * typeset:                               Bash Builtins.       (line 720)
 * ulimit:                                Bash Builtins.       (line 726)
 * umask:                                 Bourne Shell Builtins.
-                                                              (line 515)
+                                                              (line 516)
 * unalias:                               Bash Builtins.       (line 834)
 * unset:                                 Bourne Shell Builtins.
-                                                              (line 533)
+                                                              (line 534)
 * wait:                                  Job Control Builtins.
                                                              (line  86)

@@ -13094,51 +13098,51 @@ D.3 Parameter and Variable Index
 * HISTCONTROL:                           Bash Variables.      (line 443)
 * HISTFILE:                              Bash Variables.      (line 461)
 * HISTFILESIZE:                          Bash Variables.      (line 467)
-* HISTIGNORE:                            Bash Variables.      (line 478)
+* HISTIGNORE:                            Bash Variables.      (line 481)
 * history-preserve-point:                Readline Init File Syntax.
                                                              (line 234)
 * history-size:                          Readline Init File Syntax.
                                                              (line 240)
-* HISTSIZE:                              Bash Variables.      (line 502)
-* HISTTIMEFORMAT:                        Bash Variables.      (line 509)
+* HISTSIZE:                              Bash Variables.      (line 505)
+* HISTTIMEFORMAT:                        Bash Variables.      (line 512)
 * HOME:                                  Bourne Shell Variables.
                                                              (line  13)
 * horizontal-scroll-mode:                Readline Init File Syntax.
                                                              (line 250)
-* HOSTFILE:                              Bash Variables.      (line 518)
-* HOSTNAME:                              Bash Variables.      (line 529)
-* HOSTTYPE:                              Bash Variables.      (line 532)
+* HOSTFILE:                              Bash Variables.      (line 521)
+* HOSTNAME:                              Bash Variables.      (line 532)
+* HOSTTYPE:                              Bash Variables.      (line 535)
 * IFS:                                   Bourne Shell Variables.
                                                              (line  18)
-* IGNOREEOF:                             Bash Variables.      (line 535)
+* IGNOREEOF:                             Bash Variables.      (line 538)
 * input-meta:                            Readline Init File Syntax.
                                                              (line 258)
-* INPUTRC:                               Bash Variables.      (line 544)
-* INSIDE_EMACS:                          Bash Variables.      (line 548)
+* INPUTRC:                               Bash Variables.      (line 547)
+* INSIDE_EMACS:                          Bash Variables.      (line 551)
 * isearch-terminators:                   Readline Init File Syntax.
                                                              (line 269)
 * keymap:                                Readline Init File Syntax.
                                                              (line 276)
 * LANG:                                  Creating Internationalized Scripts.
                                                              (line  51)
-* LANG <1>:                              Bash Variables.      (line 554)
-* LC_ALL:                                Bash Variables.      (line 558)
-* LC_COLLATE:                            Bash Variables.      (line 562)
-* LC_CTYPE:                              Bash Variables.      (line 569)
+* LANG <1>:                              Bash Variables.      (line 557)
+* LC_ALL:                                Bash Variables.      (line 561)
+* LC_COLLATE:                            Bash Variables.      (line 565)
+* LC_CTYPE:                              Bash Variables.      (line 572)
 * LC_MESSAGES:                           Creating Internationalized Scripts.
                                                              (line  51)
-* LC_MESSAGES <1>:                       Bash Variables.      (line 574)
-* LC_NUMERIC:                            Bash Variables.      (line 578)
-* LC_TIME:                               Bash Variables.      (line 582)
-* LINENO:                                Bash Variables.      (line 586)
-* LINES:                                 Bash Variables.      (line 593)
-* MACHTYPE:                              Bash Variables.      (line 599)
+* LC_MESSAGES <1>:                       Bash Variables.      (line 577)
+* LC_NUMERIC:                            Bash Variables.      (line 581)
+* LC_TIME:                               Bash Variables.      (line 585)
+* LINENO:                                Bash Variables.      (line 589)
+* LINES:                                 Bash Variables.      (line 596)
+* MACHTYPE:                              Bash Variables.      (line 602)
 * MAIL:                                  Bourne Shell Variables.
                                                              (line  24)
-* MAILCHECK:                             Bash Variables.      (line 603)
+* MAILCHECK:                             Bash Variables.      (line 606)
 * MAILPATH:                              Bourne Shell Variables.
                                                              (line  29)
-* MAPFILE:                               Bash Variables.      (line 611)
+* MAPFILE:                               Bash Variables.      (line 614)
 * mark-modified-lines:                   Readline Init File Syntax.
                                                              (line 306)
 * mark-symlinked-directories:            Readline Init File Syntax.
@@ -13149,46 +13153,46 @@ D.3 Parameter and Variable Index
                                                              (line 323)
 * meta-flag:                             Readline Init File Syntax.
                                                              (line 258)
-* OLDPWD:                                Bash Variables.      (line 615)
+* OLDPWD:                                Bash Variables.      (line 618)
 * OPTARG:                                Bourne Shell Variables.
                                                              (line  36)
-* OPTERR:                                Bash Variables.      (line 618)
+* OPTERR:                                Bash Variables.      (line 621)
 * OPTIND:                                Bourne Shell Variables.
                                                              (line  40)
-* OSTYPE:                                Bash Variables.      (line 623)
+* OSTYPE:                                Bash Variables.      (line 626)
 * output-meta:                           Readline Init File Syntax.
                                                              (line 328)
 * page-completions:                      Readline Init File Syntax.
                                                              (line 337)
 * PATH:                                  Bourne Shell Variables.
                                                              (line  44)
-* PIPESTATUS:                            Bash Variables.      (line 626)
-* POSIXLY_CORRECT:                       Bash Variables.      (line 636)
-* PPID:                                  Bash Variables.      (line 646)
-* PROMPT_COMMAND:                        Bash Variables.      (line 650)
-* PROMPT_DIRTRIM:                        Bash Variables.      (line 656)
-* PS0:                                   Bash Variables.      (line 662)
+* PIPESTATUS:                            Bash Variables.      (line 629)
+* POSIXLY_CORRECT:                       Bash Variables.      (line 639)
+* PPID:                                  Bash Variables.      (line 649)
+* PROMPT_COMMAND:                        Bash Variables.      (line 653)
+* PROMPT_DIRTRIM:                        Bash Variables.      (line 659)
+* PS0:                                   Bash Variables.      (line 665)
 * PS1:                                   Bourne Shell Variables.
                                                              (line  53)
 * PS2:                                   Bourne Shell Variables.
                                                              (line  58)
-* PS3:                                   Bash Variables.      (line 667)
-* PS4:                                   Bash Variables.      (line 672)
-* PWD:                                   Bash Variables.      (line 680)
-* RANDOM:                                Bash Variables.      (line 683)
-* READLINE_ARGUMENT:                     Bash Variables.      (line 691)
-* READLINE_LINE:                         Bash Variables.      (line 695)
-* READLINE_MARK:                         Bash Variables.      (line 699)
-* READLINE_POINT:                        Bash Variables.      (line 705)
-* REPLY:                                 Bash Variables.      (line 709)
+* PS3:                                   Bash Variables.      (line 670)
+* PS4:                                   Bash Variables.      (line 675)
+* PWD:                                   Bash Variables.      (line 683)
+* RANDOM:                                Bash Variables.      (line 686)
+* READLINE_ARGUMENT:                     Bash Variables.      (line 694)
+* READLINE_LINE:                         Bash Variables.      (line 698)
+* READLINE_MARK:                         Bash Variables.      (line 702)
+* READLINE_POINT:                        Bash Variables.      (line 708)
+* REPLY:                                 Bash Variables.      (line 712)
 * revert-all-at-newline:                 Readline Init File Syntax.
                                                              (line 350)
 * search-ignore-case:                    Readline Init File Syntax.
                                                              (line 357)
-* SECONDS:                               Bash Variables.      (line 713)
-* SHELL:                                 Bash Variables.      (line 723)
-* SHELLOPTS:                             Bash Variables.      (line 728)
-* SHLVL:                                 Bash Variables.      (line 738)
+* SECONDS:                               Bash Variables.      (line 716)
+* SHELL:                                 Bash Variables.      (line 726)
+* SHELLOPTS:                             Bash Variables.      (line 731)
+* SHLVL:                                 Bash Variables.      (line 741)
 * show-all-if-ambiguous:                 Readline Init File Syntax.
                                                              (line 362)
 * show-all-if-unmodified:                Readline Init File Syntax.
@@ -13197,15 +13201,15 @@ D.3 Parameter and Variable Index
                                                              (line 377)
 * skip-completed-text:                   Readline Init File Syntax.
                                                              (line 383)
-* SRANDOM:                               Bash Variables.      (line 743)
+* SRANDOM:                               Bash Variables.      (line 746)
 * TEXTDOMAIN:                            Creating Internationalized Scripts.
                                                              (line  51)
 * TEXTDOMAINDIR:                         Creating Internationalized Scripts.
                                                              (line  51)
-* TIMEFORMAT:                            Bash Variables.      (line 752)
-* TMOUT:                                 Bash Variables.      (line 791)
-* TMPDIR:                                Bash Variables.      (line 803)
-* UID:                                   Bash Variables.      (line 807)
+* TIMEFORMAT:                            Bash Variables.      (line 755)
+* TMOUT:                                 Bash Variables.      (line 794)
+* TMPDIR:                                Bash Variables.      (line 806)
+* UID:                                   Bash Variables.      (line 810)
 * vi-cmd-mode-string:                    Readline Init File Syntax.
                                                              (line 396)
 * vi-ins-mode-string:                    Readline Init File Syntax.
@@ -13600,138 +13604,138 @@ D.5 Concept Index


 Tag Table:
-Node: Top904
-Node: Introduction2848
-Node: What is Bash?3064
-Node: What is a shell?4200
-Node: Definitions6813
-Node: Basic Shell Features10143
-Node: Shell Syntax11370
-Node: Shell Operation12400
-Node: Quoting13694
-Node: Escape Character15035
-Node: Single Quotes15573
-Node: Double Quotes15925
-Node: ANSI-C Quoting17273
-Node: Locale Translation18670
-Node: Creating Internationalized Scripts20076
-Node: Comments24277
-Node: Shell Commands25047
-Node: Reserved Words25989
-Node: Simple Commands26857
-Node: Pipelines27522
-Node: Lists30781
-Node: Compound Commands32656
-Node: Looping Constructs33668
-Node: Conditional Constructs36220
-Node: Command Grouping51293
-Node: Coprocesses52788
-Node: GNU Parallel55477
-Node: Shell Functions56398
-Node: Shell Parameters64849
-Node: Positional Parameters69753
-Node: Special Parameters70846
-Node: Shell Expansions74310
-Node: Brace Expansion76502
-Node: Tilde Expansion79841
-Node: Shell Parameter Expansion82799
-Node: Command Substitution103445
-Node: Arithmetic Expansion106977
-Node: Process Substitution108156
-Node: Word Splitting109267
-Node: Filename Expansion111714
-Node: Pattern Matching114941
-Node: Quote Removal120667
-Node: Redirections120974
-Node: Executing Commands131240
-Node: Simple Command Expansion131910
-Node: Command Search and Execution134021
-Node: Command Execution Environment136468
-Node: Environment139919
-Node: Exit Status141825
-Node: Signals143886
-Node: Shell Scripts148818
-Node: Shell Builtin Commands152119
-Node: Bourne Shell Builtins154233
-Node: Bash Builtins180806
-Node: Modifying Shell Behavior217733
-Node: The Set Builtin218078
-Node: The Shopt Builtin230075
-Node: Special Builtins247130
-Node: Shell Variables248122
-Node: Bourne Shell Variables248559
-Node: Bash Variables251070
-Node: Bash Features289978
-Node: Invoking Bash290995
-Node: Bash Startup Files297582
-Node: Interactive Shells302827
-Node: What is an Interactive Shell?303238
-Node: Is this Shell Interactive?303903
-Node: Interactive Shell Behavior304730
-Node: Bash Conditional Expressions308494
-Node: Shell Arithmetic313914
-Node: Aliases317246
-Node: Arrays320383
-Node: The Directory Stack327974
-Node: Directory Stack Builtins328774
-Node: Controlling the Prompt333222
-Node: The Restricted Shell336110
-Node: Bash POSIX Mode338995
-Node: Shell Compatibility Mode357355
-Node: Job Control366365
-Node: Job Control Basics366825
-Node: Job Control Builtins373196
-Node: Job Control Variables379881
-Node: Command Line Editing381115
-Node: Introduction and Notation382821
-Node: Readline Interaction385176
-Node: Readline Bare Essentials386367
-Node: Readline Movement Commands388178
-Node: Readline Killing Commands389177
-Node: Readline Arguments391203
-Node: Searching392263
-Node: Readline Init File394509
-Node: Readline Init File Syntax395815
-Node: Conditional Init Constructs422643
-Node: Sample Init File427031
-Node: Bindable Readline Commands430154
-Node: Commands For Moving431695
-Node: Commands For History434162
-Node: Commands For Text439555
-Node: Commands For Killing443683
-Node: Numeric Arguments446474
-Node: Commands For Completion447629
-Node: Keyboard Macros453328
-Node: Miscellaneous Commands454032
-Node: Readline vi Mode460602
-Node: Programmable Completion461582
-Node: Programmable Completion Builtins470322
-Node: A Programmable Completion Example482062
-Node: Using History Interactively487410
-Node: Bash History Facilities488094
-Node: Bash History Builtins491832
-Node: History Interaction498306
-Node: Event Designators503259
-Node: Word Designators504840
-Node: Modifiers507235
-Node: Installing Bash509175
-Node: Basic Installation510294
-Node: Compilers and Options514173
-Node: Compiling For Multiple Architectures514926
-Node: Installation Names516682
-Node: Specifying the System Type518919
-Node: Sharing Defaults519668
-Node: Operation Controls520385
-Node: Optional Features521407
-Node: Reporting Bugs533790
-Node: Major Differences From The Bourne Shell535150
-Node: GNU Free Documentation License556579
-Node: Indexes581759
-Node: Builtin Index582213
-Node: Reserved Word Index589314
-Node: Variable Index591762
-Node: Function Index609178
-Node: Concept Index623176
+Node: Top896
+Node: Introduction2832
+Node: What is Bash?3048
+Node: What is a shell?4184
+Node: Definitions6797
+Node: Basic Shell Features10127
+Node: Shell Syntax11354
+Node: Shell Operation12384
+Node: Quoting13678
+Node: Escape Character15019
+Node: Single Quotes15557
+Node: Double Quotes15909
+Node: ANSI-C Quoting17257
+Node: Locale Translation18654
+Node: Creating Internationalized Scripts20060
+Node: Comments24261
+Node: Shell Commands25031
+Node: Reserved Words25973
+Node: Simple Commands26841
+Node: Pipelines27506
+Node: Lists30765
+Node: Compound Commands32640
+Node: Looping Constructs33652
+Node: Conditional Constructs36204
+Node: Command Grouping51277
+Node: Coprocesses52772
+Node: GNU Parallel55461
+Node: Shell Functions56382
+Node: Shell Parameters64833
+Node: Positional Parameters69737
+Node: Special Parameters70830
+Node: Shell Expansions74294
+Node: Brace Expansion76486
+Node: Tilde Expansion79825
+Node: Shell Parameter Expansion82783
+Node: Command Substitution103429
+Node: Arithmetic Expansion106961
+Node: Process Substitution108140
+Node: Word Splitting109251
+Node: Filename Expansion111698
+Node: Pattern Matching114925
+Node: Quote Removal120651
+Node: Redirections120958
+Node: Executing Commands131224
+Node: Simple Command Expansion131894
+Node: Command Search and Execution134005
+Node: Command Execution Environment136452
+Node: Environment139903
+Node: Exit Status141809
+Node: Signals143870
+Node: Shell Scripts148802
+Node: Shell Builtin Commands152103
+Node: Bourne Shell Builtins154217
+Node: Bash Builtins180867
+Node: Modifying Shell Behavior217794
+Node: The Set Builtin218139
+Node: The Shopt Builtin230136
+Node: Special Builtins247191
+Node: Shell Variables248183
+Node: Bourne Shell Variables248620
+Node: Bash Variables251131
+Node: Bash Features290258
+Node: Invoking Bash291275
+Node: Bash Startup Files297862
+Node: Interactive Shells303107
+Node: What is an Interactive Shell?303518
+Node: Is this Shell Interactive?304183
+Node: Interactive Shell Behavior305010
+Node: Bash Conditional Expressions308774
+Node: Shell Arithmetic314194
+Node: Aliases317526
+Node: Arrays320663
+Node: The Directory Stack328254
+Node: Directory Stack Builtins329054
+Node: Controlling the Prompt333502
+Node: The Restricted Shell336390
+Node: Bash POSIX Mode339275
+Node: Shell Compatibility Mode357635
+Node: Job Control366645
+Node: Job Control Basics367105
+Node: Job Control Builtins373476
+Node: Job Control Variables380161
+Node: Command Line Editing381395
+Node: Introduction and Notation383101
+Node: Readline Interaction385456
+Node: Readline Bare Essentials386647
+Node: Readline Movement Commands388458
+Node: Readline Killing Commands389457
+Node: Readline Arguments391483
+Node: Searching392543
+Node: Readline Init File394789
+Node: Readline Init File Syntax396095
+Node: Conditional Init Constructs422923
+Node: Sample Init File427311
+Node: Bindable Readline Commands430434
+Node: Commands For Moving431975
+Node: Commands For History434442
+Node: Commands For Text439835
+Node: Commands For Killing443963
+Node: Numeric Arguments446754
+Node: Commands For Completion447909
+Node: Keyboard Macros453608
+Node: Miscellaneous Commands454312
+Node: Readline vi Mode460882
+Node: Programmable Completion461862
+Node: Programmable Completion Builtins470602
+Node: A Programmable Completion Example482342
+Node: Using History Interactively487690
+Node: Bash History Facilities488374
+Node: Bash History Builtins492112
+Node: History Interaction498586
+Node: Event Designators503539
+Node: Word Designators505120
+Node: Modifiers507515
+Node: Installing Bash509455
+Node: Basic Installation510574
+Node: Compilers and Options514453
+Node: Compiling For Multiple Architectures515206
+Node: Installation Names516962
+Node: Specifying the System Type519199
+Node: Sharing Defaults519948
+Node: Operation Controls520665
+Node: Optional Features521687
+Node: Reporting Bugs534070
+Node: Major Differences From The Bourne Shell535430
+Node: GNU Free Documentation License556859
+Node: Indexes582039
+Node: Builtin Index582493
+Node: Reserved Word Index589594
+Node: Variable Index592042
+Node: Function Index609458
+Node: Concept Index623456

 End Tag Table

@@ -4370,9 +4370,11 @@ refer to shell functions; otherwise the names refer to shell variables.

 The @option{-n} option means to unexport each name: no longer mark
 it for export.
-If no @var{name}s are supplied, or if the @option{-p} option is given,
-@code{export} displays a list of names of all exported variables on the
-standard output.
+If no @var{name}s are supplied, or if only
+the @option{-p} option is given,
+@code{export} displays a list of names of all exported
+variables on the standard output.
+Using @option{-p} and @option{-f} together displays exported functions.
 The @option{-p} option displays output in a form that may be reused as input.

@code{export} allows the value of a variable to be set at the same time
@@ -7301,8 +7303,13 @@ the shell does not save the command history when it exits.
@item HISTFILESIZE
 The maximum number of lines contained in the history file.
 When this variable is assigned a value, the history file is truncated,
-if necessary, to contain no more than that number of lines
+if necessary, to contain no more than
+the number of history entries
+that total no more than that number of lines
 by removing the oldest entries.
+If the history list contains multi-line entries,
+the history file may contain more lines than this maximum
+to avoid leaving partial history entries.
 The history file is also truncated to this size after
 writing it when a shell exits or by the @code{history} builtin.
 If the value is 0, the history file is truncated to zero size.
@@ -8589,7 +8596,8 @@ not when the function is executed, because a function definition
 is itself a command.
 As a consequence, aliases
 defined in a function are not available until after that
-function is executed.  To be safe, always put
+function is executed.
+To be safe, always put
 alias definitions on a separate line, and do not use @code{alias}
 in compound commands.

@@ -8902,8 +8910,8 @@ If the @code{popd} command is successful,
 Bash runs @code{dirs} to show the final contents of the directory stack,
 and the return status is 0.

-@btindex pushd
@item pushd
+@btindex pushd
@example
 pushd [-n] [@var{+N} | @var{-N} | @var{dir}]
@end example
@@ -9579,12 +9587,23 @@ statuses after the @code{wait} builtin returns it.

@end enumerate

-There is other @sc{posix} behavior that Bash does not implement by
+There is additional @sc{posix} behavior that Bash does not implement by
 default even when in @sc{posix} mode.
 Specifically:

@enumerate

+@item
+@sc{posix} requires that word splitting be byte-oriented.
+That is, each @emph{byte} in the value of @env{IFS} potentially splits a
+word, even if that byte is part of a multibyte character in @env{IFS}
+or part of multibyte character in the word.
+Bash allows multibyte characters in the value of @env{IFS}, treating
+a valid multibyte character as a single delimiter, and will not
+split a valid multibyte character even if one of the bytes composing that
+character appears in @env{IFS}.
+This is @sc{posix} interpretation 1560, further modified by issue 1924.
+
@item
 The @code{fc} builtin checks @code{$EDITOR} as a program to edit history
 entries if @code{FCEDIT} is unset, rather than defaulting directly to
@@ -9829,6 +9848,12 @@ the arguments as key sequences to bind.
 Interactive shells will notify the user of completed jobs while sourcing a
 script.
 Newer versions defer notification until script execution completes.
+@ignore
+@item
+Bash will not try to execute a shell function whose name contains a slash.
+Previous versions disallowed this in @sc{posix} mode but allowed it by
+default.
+@end ignore
@end itemize

@end table
@@ -2,10 +2,10 @@
 Copyright (C) 1988-2025 Free Software Foundation, Inc.
@end ignore

-@set LASTCHANGE Mon Feb 24 16:09:32 EST 2025
+@set LASTCHANGE Sun May 18 13:42:18 EDT 2025

@set EDITION 5.3
@set VERSION 5.3

-@set UPDATED 24 February 2025
-@set UPDATED-MONTH February 2025
+@set UPDATED 18 May 2025
+@set UPDATED-MONTH May 2025
@@ -15,7 +15,7 @@

 # The first cut of this was by Bill Trost, trost@reed.bitnet.
 # The second cut came from Chet Ramey, chet@ins.CWRU.Edu
-# The third cut came from Mark Kennedy, mtk@ny.ubs.com.  1998/08/25
+# The third cut came from Mark Kennedy, now mtk@acm.org.  1998/08/25

 unset _AUTOLOADS

@@ -18,7 +18,7 @@

 # The first cut of this was by Bill Trost, trost@reed.bitnet.
 # The second cut came from Chet Ramey, chet@ins.CWRU.Edu
-# The third cut came from Mark Kennedy, mtk@ny.ubs.com.  1998/08/25
+# The third cut came from Mark Kennedy, now mtk@acm.org.  1998/08/25
 # The fourth cut came from Matthew Persico, matthew.persico@gmail.com 2017/August

 autoload_calc_shimsize ()
@@ -103,8 +103,8 @@ INC = -I. -I.. -I$(topdir) -I$(topdir)/lib -I$(topdir)/builtins -I${srcdir} \
 ALLPROG = print truefalse sleep finfo logname basename dirname fdflags \
 	  tty pathchk tee head mkdir rmdir mkfifo mktemp printenv id whoami \
 	  uname sync push ln unlink realpath strftime mypid setpgid seq rm \
-	  accept csv dsv cut stat getconf kv strptime chmod
-OTHERPROG = necho hello cat pushd asort fltexpr 
+	  accept csv dsv cut stat getconf kv strptime chmod fltexpr
+OTHERPROG = necho hello cat pushd asort

 SUBDIRS = perl

@@ -119,6 +119,7 @@ typedef double sh_float_t;
 #define PREDEC	15	/* --var */
 #define POSTINC	16	/* var++ */
 #define POSTDEC	17	/* var-- */
+#define FUNC	18	/* function call */
 #define EQ	'='
 #define GT	'>'
 #define LT	'<'
@@ -148,6 +149,10 @@ typedef double sh_float_t;
 #define SHFLOAT_LENGTH_MODIFIER	'l';
 #define SHFLOAT_STRTOD		strtod

+#ifndef M_EGAMMA
+#define M_EGAMMA 0.57721566490153286060651209008240243
+#endif
+
 struct lvalue
 {
  char *tokstr;		/* possibly-rewritten lvalue if not NULL */
@@ -184,6 +189,150 @@ static int	already_expanded;
 static struct lvalue curlval = {0, 0, 0, -1};
 static struct lvalue lastlval = {0, 0, 0, -1};

+/* Function equivalents for POSIX math.h macros. */
+static int xfpclassify(sh_float_t d) { return fpclassify(d); }
+static int xisinf(sh_float_t d) { return isinf(d); }
+static int xisnan(sh_float_t d) { return isnan(d); }
+static int xisnormal(sh_float_t d) { return isnormal(d); }
+static int xisfinite(sh_float_t d) { return isfinite(d); }
+static int xsignbit(sh_float_t d) { return signbit(d); }
+
+static int xisgreater(sh_float_t d1, sh_float_t d2) { return isgreater(d1, d2); }
+static int xisgreaterequal(sh_float_t d1, sh_float_t d2) { return isgreaterequal(d1, d2); }
+static int xisless(sh_float_t d1, sh_float_t d2) { return isless(d1, d2); }
+static int xislessequal(sh_float_t d1, sh_float_t d2) { return islessequal(d1, d2); }
+static int xislessgreater(sh_float_t d1, sh_float_t d2) { return islessgreater(d1, d2); }
+static int xisunordered(sh_float_t d1, sh_float_t d2) { return isunordered(d1, d2); }
+
+static int xisinfinite(sh_float_t d) { return (fpclassify(d) == FP_INFINITE); }
+static int xissubnormal(sh_float_t d) { return (fpclassify(d) == FP_SUBNORMAL); }
+static int xiszero(sh_float_t d) { return (fpclassify(d) == FP_ZERO); }
+
+/* Function replacements for some math functions that don't conform to the
+   supported prototypes. */
+static sh_float_t xscalbn(sh_float_t d1, sh_float_t d2) { int x = d2; return (scalbn (d1, x)); }
+static sh_float_t xjn(sh_float_t d1, sh_float_t d2) { int x = d1; return (jn (x, d2)); }
+static sh_float_t xyn(sh_float_t d1, sh_float_t d2) { int x = d1; return (yn (x, d2)); }
+static sh_float_t xldexp(sh_float_t d1, sh_float_t d2) { int x = d2; return (ldexp (d1, x)); }
+
+/* Some additional math functions that aren't in libm */
+static sh_float_t xcot(sh_float_t d) { return (1.0 / tan(d)); }
+static sh_float_t xcoth(sh_float_t d) { return (cosh(d) / sinh(d)); }
+
+static sh_float_t xroundp(sh_float_t d1, sh_float_t d2)
+{
+  sh_float_t m, r;
+  int prec = d2;
+
+  m = pow(10.0, prec);
+  r = round(d1 * m) / m;
+  return r;
+}
+
+typedef int imathfunc1(sh_float_t);
+typedef int imathfunc2(sh_float_t, sh_float_t);
+typedef sh_float_t mathfunc1(sh_float_t);
+typedef sh_float_t mathfunc2(sh_float_t, sh_float_t);
+typedef sh_float_t mathfunc3(sh_float_t, sh_float_t, sh_float_t);
+
+typedef struct
+{
+  char *name;
+  int nargs;		/* > 0, function returns double; < 0, function returns int */
+  union
+    {
+      mathfunc1 *func1;
+      mathfunc2 *func2;
+      mathfunc3 *func3;
+      imathfunc1 *ifunc1;
+      imathfunc2 *ifunc2;
+    } f;
+} FLTEXPR_MATHFUN;
+
+/* Not implemented yet: functions that don't fit one of the supported
+   calling prototypes, with a couple of exceptions */
+FLTEXPR_MATHFUN mathfuncs[] =
+{
+  { "abs",	1,	{ .func1 = fabs }	},
+  { "acos",	1,	{ .func1 = acos }	},
+  { "acosh",	1,	{ .func1 = acosh }	},
+  { "asin",	1,	{ .func1 = asin }	},
+  { "asinh",	1,	{ .func1 = asinh }	},
+  { "atan",	1,	{ .func1 = atan }	},
+  { "atanh",	1,	{ .func1 = atanh }	},
+  { "cbrt",	1,	{ .func1 = cbrt }	},
+  { "ceil",	1,	{ .func1 = ceil }	},
+  { "cos",	1,	{ .func1 = cos }	},  
+  { "cosh",	1,	{ .func1 = cosh }	},
+  { "cot",	1,	{ .func1 = xcot }	},
+  { "coth",	1,	{ .func1 = xcoth }	},
+  { "erf",	1,	{ .func1 = erf }	},
+  { "erfc",	1,	{ .func1 = erfc }	},
+  { "exp",	1,	{ .func1 = exp }	},
+  { "exp2",	1,	{ .func1 = exp2 }	},
+  { "expm1",	1,	{ .func1 = expm1 }	},
+  { "fabs",	1,	{ .func1 = fabs }	},
+  { "floor",	1,	{ .func1 = floor }	},
+  { "j0",	1,	{ .func1 = j0 }		},
+  { "j1",	1,	{ .func1 = j1 }		},
+  { "lgamma",	1,	{ .func1 = lgamma }	},
+  { "log",	1,	{ .func1 = log }	},
+  { "log10",	1,	{ .func1 = log10 }	},
+  { "log1p",	1,	{ .func1 = log1p }	},
+  { "log2",	1,	{ .func1 = log2 }	},
+  { "logb",	1,	{ .func1 = logb }	},
+  { "nearbyint",1,	{ .func1 = nearbyint }	},
+  { "rint",	1,	{ .func1 = rint }	},
+  { "round",	1,	{ .func1 = round }	},
+  { "sin",	1,	{ .func1 = sin }	},
+  { "sinh",	1,	{ .func1 = sinh }	},
+  { "sqrt",	1,	{ .func1 = sqrt }	},
+  { "tan",	1,	{ .func1 = tan }	},
+  { "tanh",	1,	{ .func1 = tanh }	},
+  { "tgamma",	1,	{ .func1 = tgamma }	},
+  { "trunc",	1,	{ .func1 = trunc }	},
+  { "y0",	1,	{ .func1 = y0 }		},
+  { "y1",	1,	{ .func1 = y1 }		},
+
+  { "atan2",	2,	{ .func2 = atan2 }	},
+  { "copysign",	2,	{ .func2 = copysign }	},
+  { "fdim",	2,	{ .func2 = fdim }	},
+  { "fmax",	2,	{ .func2 = fmax }	},
+  { "fmin",	2,	{ .func2 = fmin }	},
+  { "fmod",	2,	{ .func2 = fmod }	},
+  { "hypot",	2,	{ .func2 = hypot }	},
+  { "nextafter",2,	{ .func2 = nextafter }	},
+  { "pow",	2,	{ .func2 = pow }	},
+  { "remainder",2,	{ .func2 = remainder }	},
+  { "roundp",	2,	{ .func2 = xroundp }	},
+  { "ldexp",	2,	{ .func2 = xldexp }	},
+  { "jn",	2,	{ .func2 = xjn }	},
+  { "scalbn",	2,	{ .func2 = xscalbn }	},
+  { "yn",	2,	{ .func2 = xyn }	},
+
+  { "fma",	3,	{ .func3 = fma }	},
+ 
+  { "fpclassify",-1,	{ .ifunc1 = xfpclassify }	},
+  { "isfinite",	-1,	{ .ifunc1 = xisfinite }		},
+  { "isinf",	-1,	{ .ifunc1 = xisinf }		},
+  { "isinfinite",-1,	{ .ifunc1 = xisinfinite }	},
+  { "isnan",	-1,	{ .ifunc1 = xisnan }		},
+  { "isnormal",	-1,	{ .ifunc1 = xisnormal }		},
+  { "issubnormal",-1,	{ .ifunc1 = xissubnormal }	},
+  { "iszero",	-1,	{ .ifunc1 = xiszero }		},
+  { "ilogb",	-1,	{ .ifunc1 = ilogb }		},
+  { "signbit",	-1,	{ .ifunc1 = xsignbit }		},
+ 
+  { "isgreater",-2,	{ .ifunc2 = xisgreater }	},
+  { "isgreaterequal",-2,{ .ifunc2 = xisgreaterequal }	},
+  { "isless",	-2,	{ .ifunc2 = xisless }		},
+  { "islessequal", -2,	{ .ifunc2 = xislessequal }	},
+  { "islessgreater",-2,	{ .ifunc2 = xislessgreater }	},
+  { "isunordered",-2,	{ .ifunc2 = xisunordered }	},
+
+  { NULL, 	0,	NULL	}
+};
+
 static sh_float_t nanval, infval;

 static int	is_arithop (int);
@@ -194,10 +343,15 @@ static void	init_lvalue (struct lvalue *);
 static struct lvalue *alloc_lvalue (void);
 static void	free_lvalue (struct lvalue *);

-static sh_float_t	fltexpr_streval (char *, int, struct lvalue *);
+static sh_float_t fltexpr_streval (char *, int, struct lvalue *);
+
+static int fltexpr_findfunc (char *);
+static sh_float_t fltexpr_funeval (char *, struct lvalue *);
+static sh_float_t expfunc (int);
+
 static void	evalerror (const char *);

-static sh_float_t	fltexpr_strtod (const char *, char **);
+static sh_float_t fltexpr_strtod (const char *, char **);
 static char	*fltexpr_format (sh_float_t);

 #if defined (ARRAYS)
@@ -368,7 +522,7 @@ fltexpr_format (sh_float_t val)
  *p++ = '.';
  *p++ = '*';
  *p++ = SHFLOAT_LENGTH_MODIFIER;
-  *p++ = 'g';	/* XXX */
+  *p++ = 'g';
  *p = '\0';

  retsize = sizeof (ret);
@@ -1019,12 +1173,74 @@ exp0 (void)

      readtok ();
    }
+  else if (curtok == FUNC)
+    {
+      val = expfunc (tokval);
+      lasttok = FUNC;
+      curtok = NUM;
+
+      readtok ();	/* skip over closing right paren, expfunc checks syntax */
+    }
  else
    evalerror (_("arithmetic syntax error: operand expected"));

  return (val);
 }

+/* Evaluate a math function call with some minimal error checking. */
+static sh_float_t
+expfunc (int ind)
+{
+  FLTEXPR_MATHFUN func;
+  sh_float_t arg1, arg2, arg3, val;
+  int nargs, ival;
+
+  func = mathfuncs[ind];
+  /* If func.nargs > 0, the function returns double and takes func.nargs arguments;
+     if func.nargs < 0, the function returns int and takes -func.nargs arguments. */
+  nargs = (func.nargs > 0) ? func.nargs : -func.nargs;
+
+  readtok();
+  if (curtok != LPAR)
+    evalerror (_("function call: expected left paren"));
+
+  readtok ();
+  arg1 = expassign ();
+  if (nargs > 1)
+    {
+      if (curtok != COMMA)
+	evalerror (_("function call: expected comma"));
+      readtok ();		/* consume the comma */
+      arg2 = expassign ();
+    }
+  if (nargs > 2)
+    {
+      if (curtok != COMMA)
+	evalerror (_("function call: expected comma"));
+      readtok ();		/* consume the comma */
+      arg3 = expassign ();
+    }
+
+  if (curtok != RPAR)
+    evalerror (_("function call: expected right paren"));
+
+  switch (func.nargs)
+    {
+    case 1:
+      val = (*func.f.func1) (arg1); break;
+    case 2:
+      val = (*func.f.func2) (arg1, arg2); break;
+    case 3:
+      val = (*func.f.func3) (arg1, arg2, arg3); break;
+    case -1:
+      ival = (*func.f.ifunc1) (arg1); val = ival; break;
+    case -2:
+      ival = (*func.f.ifunc2) (arg1, arg2); val = ival; break;
+    }
+
+  return val;
+}
+
 static void
 init_lvalue (struct lvalue *lv)
 {
@@ -1050,6 +1266,17 @@ free_lvalue (struct lvalue *lv)
  free (lv);		/* should be inlined */
 }

+static int
+fltexpr_findfunc (char *name)
+{
+  int i;
+
+  for (i = 0; mathfuncs[i].name; i++)
+    if (STREQ (name, mathfuncs[i].name))
+      return i;
+  return -1;
+}
+
 static sh_float_t
 fltexpr_streval (char *tok, int e, struct lvalue *lvalue)
 {
@@ -1263,12 +1490,33 @@ readtok (void)
      lasttok = curtok;
      curtok = NUM;
    }
+  else if (strncasecmp (tp, "PI", 2) == 0 && (isalnum (tp[2]) == 0))
+    {
+      cp = tp + 2;
+      tokval = M_PI;
+      lasttok = curtok;
+      curtok = NUM;
+    }
+  else if (strncasecmp (tp, "GAMMA", 2) == 0 && (isalnum (tp[5]) == 0))
+    {
+      cp = tp + 5;
+      tokval = M_EGAMMA;
+      lasttok = curtok;
+      curtok = NUM;
+    }
+  else if ((tp[0] == 'E' || tp[0] == 'e') && (isalnum (tp[1]) == 0))
+    {
+      cp = tp + 1;
+      tokval = M_E;
+      lasttok = curtok;
+      curtok = NUM;
+    }
  else if (legal_variable_starter (c))
    {
      /* variable names not preceded with a dollar sign are shell variables. */
      char *savecp;
      FLTEXPR_CONTEXT ec;
-      int peektok;
+      int peektok, ind;

      while (legal_variable_char (c))
 	c = *cp++;
@@ -1312,6 +1560,18 @@ readtok (void)
      RESTORETOK (&ec);
      cp = savecp;

+      ind = -1;
+      if ((ind = fltexpr_findfunc (tokstr)) != -1 && peektok == LPAR)
+	{
+	  lasttok = curtok;
+	  curtok = FUNC;
+	  tokval = ind;		/* overload this here for expfunc */
+	  tp = cp;
+	  return;		/* XXX */
+	}
+      else if (ind == -1 && peektok == LPAR)
+	evalerror (_("unrecognized function name"));
+	
      /* The tests for PREINC and PREDEC aren't strictly correct, but they
 	 preserve old behavior if a construct like --x=9 is given. */
      if (lasttok == PREINC || lasttok == PREDEC || peektok != EQ)
@@ -4669,7 +4669,11 @@ execute_simple_command (SIMPLE_COM *simple_command, int pipe_in, int pipe_out, i
 	    builtin_is_special = 1;
 	}
      if (builtin == 0)
+#if 0	/*TAG bash-5.4 rob@landley.net 5/1/2025 */
+	func = ((shell_compatibility_level <= 52 && posixly_correct == 0) || absolute_program (words->word->word) == 0) ? find_function (words->word->word) : 0;
+#else
 	func = (posixly_correct == 0 || absolute_program (words->word->word) == 0) ? find_function (words->word->word) : 0;
+#endif
    }

  /* What happens in posix mode when an assignment preceding a command name
@@ -809,7 +809,7 @@ rl_redisplay (void)
 {
  int in, out, c, linenum, cursor_linenum;
  int inv_botlin, lb_botlin, lb_linenum, o_cpos;
-  int newlines, lpos, temp, num, prompt_lines_estimate;
+  int newlines, lpos, temp, num;
  char *prompt_this_line;
  char cur_face;
  int hl_begin, hl_end;
@@ -1014,9 +1014,6 @@ rl_redisplay (void)
     on the first and last prompt lines; change that to use
     local_prompt_invis_chars */

-  /* This is zero-based, used to set the newlines */
-  prompt_lines_estimate = lpos / _rl_screenwidth;
-
  /* what if lpos is already >= _rl_screenwidth before we start drawing the
     contents of the command line? */
  if (lpos >= _rl_screenwidth)
@@ -1908,7 +1905,6 @@ update_line (char *old, char *old_face, char *new, char *new_face, int current_l
 	  if (newwidth > 0)
 	    {
 	      int i, j;
-	      char *optr;

 	      puts_face (new, new_face, newbytes);
 	      _rl_last_c_pos = newwidth;
@@ -79,9 +79,11 @@ main (int c, char **v)
  /* Set the default locale values according to environment variables. */
  setlocale (LC_ALL, "");

+#if defined (SIGWINCH)
  /* Handle window size changes when readline is not active and reading
     characters. */
  signal (SIGWINCH, sighandler);
+#endif
  
  /* Install the line handler. */
  rl_callback_handler_install (prompt, cb_linehandler);
@@ -679,7 +679,7 @@ history_expand_internal (const char *string, int start, int qc, int *end_index_p
 	case 's':
 	  {
 	    char *new_event;
-	    int delimiter, failed, si, l_temp, ws, we;
+	    int delimiter, failed, si, l_temp, we;

 	    if (c == 's')
 	      {
@@ -778,7 +778,6 @@ history_expand_internal (const char *string, int start, int qc, int *end_index_p
 		  {
 		    for (; temp[si] && fielddelim (temp[si]); si++)
 		      ;
-		    ws = si;
 		    we = history_tokenize_word (temp, si);
 		  }

@@ -182,6 +182,7 @@ history_filename (const char *filename)
  return (return_val);
 }

+#if defined (DEBUG)
 static char *
 history_backupfile (const char *filename)
 {
@@ -208,6 +209,7 @@ history_backupfile (const char *filename)
  ret[len+1] = '\0';
  return ret;
 }
+#endif
  
 static char *
 history_tempfile (const char *filename)
@@ -267,6 +269,7 @@ read_history_range (const char *filename, int from, int to)
  register char *line_start, *line_end, *p;
  char *input, *buffer, *bufend, *last_ts;
  int file, current_line, chars_read, has_timestamps, reset_comment_char;
+  int skipblanks, default_skipblanks;
  struct stat finfo;
  size_t file_size;
 #if defined (EFBIG)
@@ -380,6 +383,9 @@ read_history_range (const char *filename, int from, int to)
  has_timestamps = HIST_TIMESTAMP_START (buffer);
  history_multiline_entries += has_timestamps && history_write_timestamps;

+  /* default is to skip blank lines unless history entries are multiline */
+  default_skipblanks = history_multiline_entries == 0;
+
  /* Skip lines until we are at FROM. */
  if (has_timestamps)
    last_ts = buffer;
@@ -405,6 +411,8 @@ read_history_range (const char *filename, int from, int to)
 	  }
      }

+  skipblanks = default_skipblanks;
+
  /* If there are lines left to gobble, then gobble them now. */
  for (line_end = line_start; line_end < bufend; line_end++)
    if (*line_end == '\n')
@@ -415,10 +423,16 @@ read_history_range (const char *filename, int from, int to)
 	else
 	  *line_end = '\0';

-	if (*line_start)
+	if (*line_start || skipblanks == 0)
 	  {
 	    if (HIST_TIMESTAMP_START(line_start) == 0)
 	      {
+		/* If we have multiline entries (default_skipblanks == 0), we
+		   don't want to skip blanks here, since we turned that on at
+		   the last timestamp line. Consider doing this even if
+		   default_skipblanks == 1 in order not to lose blank lines in
+		   commands. */
+		skipblanks = default_skipblanks;
 	      	if (last_ts == NULL && history_length > 0 && history_multiline_entries)
 		  _hs_append_history_line (history_length - 1, line_start);
 		else
@@ -433,6 +447,9 @@ read_history_range (const char *filename, int from, int to)
 	      {
 		last_ts = line_start;
 		current_line--;
+		/* Even if we're not skipping blank lines by default, we want
+		   to skip leading blank lines after a timestamp. */
+		skipblanks = 1;
 	      }
 	  }

@@ -470,6 +487,7 @@ history_rename (const char *old, const char *new)
 #endif
 }

+#if defined (DEBUG)
 /* Save FILENAME to BACK, handling case where FILENAME is a symlink
   (e.g., ~/.bash_history -> .histfiles/.bash_history.$HOSTNAME) */
 static int
@@ -488,6 +506,7 @@ histfile_backup (const char *filename, const char *back)
 #endif
  return (history_rename (filename, back));
 }
+#endif

 /* Restore ORIG from BACKUP handling case where ORIG is a symlink
   (e.g., ~/.bash_history -> .histfiles/.bash_history.$HOSTNAME) */
@@ -708,13 +727,13 @@ static int
 history_write_slow (int fd, HIST_ENTRY **the_history, int nelements, int overwrite)
 {
  FILE *fp;
-  int i, j, e;
+  int i, e;

  fp = fdopen (fd, overwrite ? "w" : "a");
  if (fp == 0)
    return -1;

-  for (j = 0, i = history_length - nelements; i < history_length; i++)
+  for (i = history_length - nelements; i < history_length; i++)
    {
      if (history_write_timestamps && the_history[i]->timestamp && the_history[i]->timestamp[0])
 	fprintf (fp, "%s\n", the_history[i]->timestamp);
@@ -202,7 +202,7 @@ using_history (void)
 int
 history_total_bytes (void)
 {
-  register int i, result;
+  int i, result;

  for (i = result = 0; the_history && the_history[i]; i++)
    result += HISTENT_BYTES (the_history[i]);
@@ -545,7 +545,7 @@ void
 _hs_replace_history_data (int which, histdata_t *old, histdata_t *new)
 {
  HIST_ENTRY *entry;
-  register int i, last;
+  int i, last;

  if (which < -2 || which >= history_length || history_length == 0 || the_history == 0)
    return;
@@ -581,7 +581,7 @@ _hs_replace_history_data (int which, histdata_t *old, histdata_t *new)
 int
 _hs_search_history_data (histdata_t *needle)
 {
-  register int i;
+  int i;
  HIST_ENTRY *entry;

  if (history_length == 0 || the_history == 0)
@@ -605,10 +605,11 @@ HIST_ENTRY *
 remove_history (int which)
 {
  HIST_ENTRY *return_value;
-  register int i;
 #if 1
  int nentries;
  HIST_ENTRY **start, **end;
+#else
+  int i;
 #endif

  if (which < 0 || which >= history_length || history_length ==  0 || the_history == 0)
@@ -1,6 +1,6 @@
 /* input.c -- character input functions for readline. */

-/* Copyright (C) 1994-2022 Free Software Foundation, Inc.
+/* Copyright (C) 1994-2025 Free Software Foundation, Inc.

   This file is part of the GNU Readline Library (Readline), a library
   for reading lines of text with interactive input and history editing.      
@@ -554,15 +554,15 @@ reset_alarm ()
  timerclear (&it.it_value);
  setitimer (ITIMER_REAL, &it, NULL);
 }
-#  else
-#  if defined (__MINGW32_MAJOR_VERSION)
+#  else /* !HAVE_SETITIMER */
+#    if defined (__MINGW32_MAJOR_VERSION)
 /* mingw.org's MinGW doesn't have alarm(3).  */
 unsigned int
 alarm (unsigned int seconds)
 {
  return 0;
 }
-#  endif
+#    endif /* __MINGW32_MAJOR_VERSION */

 static int
 set_alarm (unsigned int *secs, unsigned int *usecs)
@@ -578,8 +578,8 @@ reset_alarm ()
 {
  alarm (0);
 }
-#  endif
-#endif
+#  endif /* !HAVE_SETITIMER */
+#endif /* RL_TIMEOUT_USE_SIGALRM */

 /* Set a timeout which will be used for the next call of `readline
   ()'.  When (0, 0) are specified the timeout is cleared.  */
@@ -921,7 +921,7 @@ rl_getc (FILE *stream)

 /* fprintf(stderr, "rl_getc: result = %d errno = %d\n", result, errno); */

-handle_error:
+      /* Handle errors here. */
      osig = _rl_caught_signal;
      ostate = rl_readline_state;

@@ -1366,6 +1366,7 @@ readline_default_bindings (void)
    rl_tty_set_default_bindings (_rl_keymap);
 }

+#if defined (DEBUG)
 /* Reset the default bindings for the terminal special characters we're
   interested in back to rl_insert and read the new ones. */
 static void
@@ -1377,6 +1378,7 @@ reset_default_bindings (void)
      rl_tty_set_default_bindings (_rl_keymap);
    }
 }
+#endif

 /* Bind some common arrow key sequences in MAP. */
 static void
@@ -590,7 +590,6 @@ rl_history_search_internal (int count, int dir)
 {
  HIST_ENTRY *temp;
  int ret, oldpos, newcol;
-  char *t;

  oldpos = where_history ();	/* where are we now? */
  temp = (HIST_ENTRY *)NULL;
@@ -650,6 +649,7 @@ rl_history_search_internal (int count, int dir)
  else
    {
 #if 0
+      char *t;
      t = strstr (rl_line_buffer, history_search_string);	/* XXX */
      rl_point = t ? (int)(t - rl_line_buffer) + _rl_history_search_len : rl_end;
 #else
@@ -118,8 +118,10 @@ sh_single_quote (char *string)
 /* Set the environment variables LINES and COLUMNS to lines and cols,
   respectively. */
 static char setenv_buf[INT_STRLEN_BOUND (int) + 1];
+#if defined (HAVE_PUTENV) && !defined (HAVE_SETENV)
 static char putenv_buf1[INT_STRLEN_BOUND (int) + 6 + 1];	/* sizeof("LINES=") == 6 */
 static char putenv_buf2[INT_STRLEN_BOUND (int) + 8 + 1];	/* sizeof("COLUMNS=") == 8 */
+#endif

 void
 sh_set_lines_and_columns (int lines, int cols)
@@ -102,12 +102,20 @@ static char *term_string_buffer = (char *)NULL;

 static int tcap_initialized;

-#if !defined (__linux__) && !defined (NCURSES_VERSION)
-#  if defined (__EMX__) || defined (NEED_EXTERN_PC)
+/* Systems for which PC/BC/UP are defined in the curses library and need an
+   extern definition here. */
+#if !defined (__linux__) && !defined (__gnu_hurd__) && !defined (NCURSES_VERSION)
+#  define NEED_EXTERN_PC
+#endif /* !__linux__ && !__gnu_hurd__ && !NCURSES_VERSION */
+
+#if defined (__EMX__)
+#  define NEED_EXTERN_PC
+#endif
+
+#if defined (NEED_EXTERN_PC)
 extern 
-#  endif /* __EMX__ || NEED_EXTERN_PC */
+#  endif /* NEED_EXTERN_PC */
 char PC, *BC, *UP;
-#endif /* !__linux__ && !NCURSES_VERSION */

 /* Some strings to control terminal actions.  These are output by tputs (). */
 char *_rl_term_clreol;
@@ -292,7 +292,7 @@ _rl_strpbrk (const char *string1, const char *string2)
  register const char *scan;
 #if defined (HANDLE_MULTIBYTE)
  mbstate_t ps;
-  register int i, v;
+  int v;

  memset (&ps, 0, sizeof (mbstate_t));
 #endif
@@ -57,8 +57,41 @@ void zreset (void);

 int zungetc (int);

-/* Provide one character of pushback whether we are using read or zread. */
-static int zpushedchar = -1;
+/* Provide 16 bytes of pushback whether we are using read or zread. Only used
+   by the read builtin when reading invalid multibyte characters. */
+#define ZPUSHSIZE 16
+
+static size_t zpushind, zpopind;
+static unsigned char zpushbuf[ZPUSHSIZE];
+static unsigned char zbufchar;
+
+static inline int
+zbufpop(unsigned char *cp)
+{
+  if (zpushind == zpopind)
+    return (0);
+  *cp = zpushbuf[zpopind++];
+  if (zpopind == zpushind)
+    zpopind = zpushind = 0;	/* reset, buffer empty */
+  return 1;
+}
+
+static inline int
+zbufpush(int c)
+{
+  if (zpushind == ZPUSHSIZE - 1)
+    return 0;
+  zpushbuf[zpushind++] = c;
+  return 1;
+}
+
+/* Add C to the pushback buffer. Can't push back EOF */
+int
+zungetc (int c)
+{
+  zbufpush (c);
+  return c;
+}

 /* Read LEN bytes from FD into BUF.  Retry the read on EINTR.  Any other
   error causes the loop to break. */
@@ -69,11 +102,10 @@ zread (int fd, char *buf, size_t len)

  check_signals ();	/* check for signals before a blocking read */

-  /* If we pushed a char back, return it immediately */
-  if (zpushedchar != -1)
+  /* If we pushed chars back, return the oldest one immediately */
+  if (zbufpop (&zbufchar))
    {
-      *buf = (unsigned char)zpushedchar;
-      zpushedchar = -1;
+      *buf = zbufchar;
      return 1;
    }

@@ -114,11 +146,10 @@ zreadretry (int fd, char *buf, size_t len)
  ssize_t r;
  int nintr;

-  /* If we pushed a char back, return it immediately */
-  if (zpushedchar != -1)
+  /* If we pushed chars back, return the oldest one immediately */
+  if (zbufpop (&zbufchar))
    {
-      *buf = (unsigned char)zpushedchar;
-      zpushedchar = -1;
+      *buf = zbufchar;
      return 1;
    }

@@ -143,14 +174,13 @@ zreadintr (int fd, char *buf, size_t len)
 {
  check_signals ();

-  /* If we pushed a char back, return it immediately */
-  if (zpushedchar != -1)
-    {
-      *buf = (unsigned char)zpushedchar;
-      zpushedchar = -1;
-      return 1;
-    }
-
+  /* If we pushed chars back, return the oldest one immediately */
+  if (zbufpop (&zbufchar))  
+    {    
+      *buf = zbufchar;        
+      return 1;              
+    }                            
+        
  return (read (fd, buf, len));
 }

@@ -166,14 +196,13 @@ zreadc (int fd, char *cp)
 {
  ssize_t nr;

-  /* If we pushed a char back, return it immediately */
-  if (zpushedchar != -1 && cp)
-    {
-      *cp = (unsigned char)zpushedchar;
-      zpushedchar = -1;
-      return 1;
-    }
-
+  /* If we pushed chars back, return the oldest one immediately */
+  if (cp && zbufpop (&zbufchar))  
+    {    
+      *cp = zbufchar;        
+      return 1;              
+    }                            
+        
  if (lind == lused || lused == 0)
    {
      nr = zread (fd, lbuf, sizeof (lbuf));
@@ -197,12 +226,11 @@ zreadcintr (int fd, char *cp)
 {
  ssize_t nr;

-  /* If we pushed a char back, return it immediately */
-  if (zpushedchar != -1 && cp)
-    {
-      *cp = (unsigned char)zpushedchar;
-      zpushedchar = -1;
-      return 1;
+  /* If we pushed chars back, return the oldest one immediately */
+  if (cp && zbufpop (&zbufchar))  
+    {    
+      *cp = zbufchar;        
+      return 1;              
    }

  if (lind == lused || lused == 0)
@@ -228,11 +256,11 @@ zreadn (int fd, char *cp, size_t len)
 {
  ssize_t nr;

-  if (zpushedchar != -1 && cp)
-    {
-      *cp = zpushedchar;
-      zpushedchar = -1;
-      return 1;
+  /* If we pushed chars back, return the oldest one immediately */
+  if (cp && zbufpop (&zbufchar))  
+    {    
+      *cp = zbufchar;        
+      return 1;              
    }

  if (lind == lused || lused == 0)
@@ -253,25 +281,11 @@ zreadn (int fd, char *cp, size_t len)
  return 1;
 }

-int
-zungetc (int c)
-{
-  if (zpushedchar == -1)
-    {
-      zpushedchar = c;
-      return c;
-    }
-
-  if (c == EOF || lind == 0)
-    return (EOF);
-  lbuf[--lind] = c;		/* XXX */
-  return c;
-}
-
 void
 zreset (void)
 {
  lind = lused = 0;
+  zpushind = zpopind = 0;
 }

 /* Sync the seek pointer for FD so that the kernel's idea of the last char
@@ -287,5 +301,8 @@ zsyncfd (int fd)
    r = lseek (fd, -off, SEEK_CUR);

  if (r != -1)
-    lused = lind = 0;
+    {
+      lused = lind = 0;
+      zpushind = zpopind = 0;
+    }
 }
@@ -2214,7 +2214,15 @@ read_a_line (int remove_quoted_newline)
      QUIT;

      /* If we're reading the here-document from an alias, use shell_getc */
-      c = heredoc_string ? shell_getc (0) : yy_getc ();
+      if (interactive && EOF_Reached && heredoc_string == 0)
+	{
+	  c = EOF;
+	  EOF_Reached = 0;
+	  if (current_token == yacc_EOF)
+	    current_token = '\n';		/* reset state */
+	}
+      else
+	c = heredoc_string ? shell_getc (0) : yy_getc ();

      /* Ignore null bytes in input. */
      if (c == 0)
@@ -2451,7 +2459,10 @@ static struct dstack temp_dstack = { (char *)NULL, 0, 0 };
    } \
  while (0)

-#define pop_delimiter(ds)	ds.delimiter_depth--
+/* The parsing or expansion code may have called reset_parser() between the
+   time push_delimiter was called and this call to pop_delimiter, which resets
+   delimiter_depth to 0, so we check. */
+#define pop_delimiter(ds) do { if (ds.delimiter_depth > 0) ds.delimiter_depth--; } while (0)

 /* Return the next shell input character.  This always reads characters
   from shell_input_line; when that line is exhausted, it is time to
@@ -4983,11 +4994,12 @@ parse_arith_cmd (char **ep, int adddq)
    }
  else				/* nested subshell */
    {
+      shell_ungetc (c);
+
      tokstr[0] = '(';
      strncpy (tokstr + 1, ttok, ttoklen - 1);
      tokstr[ttoklen] = ')';
-      tokstr[ttoklen+1] = c;
-      tokstr[ttoklen+2] = '\0';
+      tokstr[ttoklen+1] = '\0';
    }

  *ep = tokstr;
@@ -5990,6 +6002,10 @@ static const int no_semi_successors[] = {
  0
 };

+static const int no_semi_predecessors[] = {
+'&', '|', ';', 0
+};
+
 /* If we are not within a delimited expression, try to be smart
   about which separators can be semi-colons and which must be
   newlines.  Returns the string that should be added into the
@@ -5999,6 +6015,7 @@ char *
 history_delimiting_chars (const char *line)
 {
  static int last_was_heredoc = 0;	/* was the last entry the start of a here document? */
+  const char *lp;
  register int i;

  if ((parser_state & PST_HEREDOC) == 0)
@@ -6045,6 +6062,9 @@ history_delimiting_chars (const char *line)
  if (parser_state & PST_COMPASSIGN)
    return (" ");

+  for (lp = line; *lp && shellblank(*lp); lp++)
+    ;
+
  /* First, handle some special cases. */
  /*(*/
  /* If we just read `()', assume it's a function definition, and don't
@@ -6061,7 +6081,15 @@ history_delimiting_chars (const char *line)
      else if (parser_state & PST_CASESTMT)	/* case statement pattern */
 	return " ";
      else
-	return "; ";				/* (...) subshell */
+	{
+	  /* (...) subshell. Make sure this line doesn't start with an
+	     operator that cannot be preceded by a semicolon. If it can't
+	     (basically the command terminators), return a newline. */
+	  for (i = 0; no_semi_predecessors[i]; i++)
+	    if (*lp == no_semi_predecessors[i])
+	      return "\n";
+	  return "; ";
+	}
    }
  else if (token_before_that == WORD && two_tokens_ago == FUNCTION)
    return " ";		/* function def using `function name' without `()' */
@@ -1,193 +0,0 @@
-/* A Bison parser, made by GNU Bison 3.8.2.  */
-
-/* Bison interface for Yacc-like parsers in C
-
-   Copyright (C) 1984, 1989-1990, 2000-2015, 2018-2021 Free Software Foundation,
-   Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-/* As a special exception, you may create a larger work that contains
-   part or all of the Bison parser skeleton and distribute that work
-   under terms of your choice, so long as that work isn't itself a
-   parser generator using the skeleton or a modified version thereof
-   as a parser skeleton.  Alternatively, if you modify or redistribute
-   the parser skeleton itself, you may (at your option) remove this
-   special exception, which will cause the skeleton and the resulting
-   Bison output files to be licensed under the GNU General Public
-   License without this special exception.
-
-   This special exception was added by the Free Software Foundation in
-   version 2.2 of Bison.  */
-
-/* DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
-   especially those whose name start with YY_ or yy_.  They are
-   private implementation details that can be changed or removed.  */
-
-#ifndef YY_YY_Y_TAB_H_INCLUDED
-# define YY_YY_Y_TAB_H_INCLUDED
-/* Debug traces.  */
-#ifndef YYDEBUG
-# define YYDEBUG 0
-#endif
-#if YYDEBUG
-extern int yydebug;
-#endif
-
-/* Token kinds.  */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
-  enum yytokentype
-  {
-    YYEMPTY = -2,
-    YYEOF = 0,                     /* "end of file"  */
-    YYerror = 256,                 /* error  */
-    YYUNDEF = 257,                 /* "invalid token"  */
-    IF = 258,                      /* IF  */
-    THEN = 259,                    /* THEN  */
-    ELSE = 260,                    /* ELSE  */
-    ELIF = 261,                    /* ELIF  */
-    FI = 262,                      /* FI  */
-    CASE = 263,                    /* CASE  */
-    ESAC = 264,                    /* ESAC  */
-    FOR = 265,                     /* FOR  */
-    SELECT = 266,                  /* SELECT  */
-    WHILE = 267,                   /* WHILE  */
-    UNTIL = 268,                   /* UNTIL  */
-    DO = 269,                      /* DO  */
-    DONE = 270,                    /* DONE  */
-    FUNCTION = 271,                /* FUNCTION  */
-    COPROC = 272,                  /* COPROC  */
-    COND_START = 273,              /* COND_START  */
-    COND_END = 274,                /* COND_END  */
-    COND_ERROR = 275,              /* COND_ERROR  */
-    IN = 276,                      /* IN  */
-    BANG = 277,                    /* BANG  */
-    TIME = 278,                    /* TIME  */
-    TIMEOPT = 279,                 /* TIMEOPT  */
-    TIMEIGN = 280,                 /* TIMEIGN  */
-    WORD = 281,                    /* WORD  */
-    ASSIGNMENT_WORD = 282,         /* ASSIGNMENT_WORD  */
-    REDIR_WORD = 283,              /* REDIR_WORD  */
-    NUMBER = 284,                  /* NUMBER  */
-    ARITH_CMD = 285,               /* ARITH_CMD  */
-    ARITH_FOR_EXPRS = 286,         /* ARITH_FOR_EXPRS  */
-    COND_CMD = 287,                /* COND_CMD  */
-    AND_AND = 288,                 /* AND_AND  */
-    OR_OR = 289,                   /* OR_OR  */
-    GREATER_GREATER = 290,         /* GREATER_GREATER  */
-    LESS_LESS = 291,               /* LESS_LESS  */
-    LESS_AND = 292,                /* LESS_AND  */
-    LESS_LESS_LESS = 293,          /* LESS_LESS_LESS  */
-    GREATER_AND = 294,             /* GREATER_AND  */
-    SEMI_SEMI = 295,               /* SEMI_SEMI  */
-    SEMI_AND = 296,                /* SEMI_AND  */
-    SEMI_SEMI_AND = 297,           /* SEMI_SEMI_AND  */
-    LESS_LESS_MINUS = 298,         /* LESS_LESS_MINUS  */
-    AND_GREATER = 299,             /* AND_GREATER  */
-    AND_GREATER_GREATER = 300,     /* AND_GREATER_GREATER  */
-    LESS_GREATER = 301,            /* LESS_GREATER  */
-    GREATER_BAR = 302,             /* GREATER_BAR  */
-    BAR_AND = 303,                 /* BAR_AND  */
-    DOLPAREN = 304,                /* DOLPAREN  */
-    DOLBRACE = 305,                /* DOLBRACE  */
-    yacc_EOF = 306                 /* yacc_EOF  */
-  };
-  typedef enum yytokentype yytoken_kind_t;
-#endif
-/* Token kinds.  */
-#define YYEMPTY -2
-#define YYEOF 0
-#define YYerror 256
-#define YYUNDEF 257
-#define IF 258
-#define THEN 259
-#define ELSE 260
-#define ELIF 261
-#define FI 262
-#define CASE 263
-#define ESAC 264
-#define FOR 265
-#define SELECT 266
-#define WHILE 267
-#define UNTIL 268
-#define DO 269
-#define DONE 270
-#define FUNCTION 271
-#define COPROC 272
-#define COND_START 273
-#define COND_END 274
-#define COND_ERROR 275
-#define IN 276
-#define BANG 277
-#define TIME 278
-#define TIMEOPT 279
-#define TIMEIGN 280
-#define WORD 281
-#define ASSIGNMENT_WORD 282
-#define REDIR_WORD 283
-#define NUMBER 284
-#define ARITH_CMD 285
-#define ARITH_FOR_EXPRS 286
-#define COND_CMD 287
-#define AND_AND 288
-#define OR_OR 289
-#define GREATER_GREATER 290
-#define LESS_LESS 291
-#define LESS_AND 292
-#define LESS_LESS_LESS 293
-#define GREATER_AND 294
-#define SEMI_SEMI 295
-#define SEMI_AND 296
-#define SEMI_SEMI_AND 297
-#define LESS_LESS_MINUS 298
-#define AND_GREATER 299
-#define AND_GREATER_GREATER 300
-#define LESS_GREATER 301
-#define GREATER_BAR 302
-#define BAR_AND 303
-#define DOLPAREN 304
-#define DOLBRACE 305
-#define yacc_EOF 306
-
-/* Value type.  */
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-union YYSTYPE
-{
-#line 375 "/usr/local/src/chet/src/bash/src/parse.y"
-
-  WORD_DESC *word;		/* the word that we read. */
-  int number;			/* the number that we read. */
-  WORD_LIST *word_list;
-  COMMAND *command;
-  REDIRECT *redirect;
-  ELEMENT element;
-  PATTERN_LIST *pattern;
-
-#line 179 "y.tab.h"
-
-};
-typedef union YYSTYPE YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1
-# define YYSTYPE_IS_DECLARED 1
-#endif
-
-
-extern YYSTYPE yylval;
-
-
-int yyparse (void);
-
-
-#endif /* !YY_YY_Y_TAB_H_INCLUDED  */
--- a/Show More
+++ b/Show More