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commit bash-20140919 snapshot

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This commit is contained in:
Chet Ramey
2014-10-02 10:22:00 -04:00
parent 96f3fb6664
commit fc5270550f
23 changed files with 13207 additions and 13005 deletions
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doc/builtins.0
+147 -140
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@@ -46,7 +46,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
AAlliiaass with no arguments or with the --pp option prints the list of
aliases in the form aalliiaass _n_a_m_e=_v_a_l_u_e on standard output. When
arguments are supplied, an alias is defined for each _n_a_m_e whose
_v_a_l_u_e is given. A trailing space in _v_a_l_u_e causes the next word
_v_a_l_u_e is given. A trailing space in _v_a_l_u_e causes the next word
to be checked for alias substitution when the alias is expanded.
For each _n_a_m_e in the argument list for which no _v_a_l_u_e is sup-
plied, the name and value of the alias is printed. AAlliiaass
@@ -66,7 +66,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
bbiinndd [--mm _k_e_y_m_a_p] --ff _f_i_l_e_n_a_m_e
bbiinndd [--mm _k_e_y_m_a_p] --xx _k_e_y_s_e_q:_s_h_e_l_l_-_c_o_m_m_a_n_d
bbiinndd [--mm _k_e_y_m_a_p] _k_e_y_s_e_q:_f_u_n_c_t_i_o_n_-_n_a_m_e
bbiinndd _r_e_a_d_l_i_n_e_-_c_o_m_m_a_n_d
bbiinndd [--mm _k_e_y_m_a_p] _k_e_y_s_e_q:_r_e_a_d_l_i_n_e_-_c_o_m_m_a_n_d
Display current rreeaaddlliinnee key and function bindings, bind a key
sequence to a rreeaaddlliinnee function or macro, or set a rreeaaddlliinnee
variable. Each non-option argument is a command as it would
@@ -152,7 +152,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
directory names in CCDDPPAATTHH are separated by a colon (:). A null
directory name in CCDDPPAATTHH is the same as the current directory,
i.e., ``..''. If _d_i_r begins with a slash (/), then CCDDPPAATTHH is not
used. The --PP option causes ccdd to use the physical directory
used. The --PP option causes ccdd to use the physical directory
structure by resolving symbolic links while traversing _d_i_r and
before processing instances of _._. in _d_i_r (see also the --PP option
to the sseett builtin command); the --LL option forces symbolic links
@@ -174,7 +174,7 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
ccoommmmaanndd [--ppVVvv] _c_o_m_m_a_n_d [_a_r_g ...]
Run _c_o_m_m_a_n_d with _a_r_g_s suppressing the normal shell function
lookup. Only builtin commands or commands found in the PPAATTHH are
lookup. Only builtin commands or commands found in the PPAATTHH are
executed. If the --pp option is given, the search for _c_o_m_m_a_n_d is
performed using a default value for PPAATTHH that is guaranteed to
find all of the standard utilities. If either the --VV or --vv
@@ -401,11 +401,11 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
attribute is disabled.
--nn Give each _n_a_m_e the _n_a_m_e_r_e_f attribute, making it a name
reference to another variable. That other variable is
defined by the value of _n_a_m_e. All references and assign-
ments to _n_a_m_e, except for changing the --nn attribute
itself, are performed on the variable referenced by
_n_a_m_e's value. The --nn attribute cannot be applied to
array variables.
defined by the value of _n_a_m_e. All references, assign-
ments, and attribute modifications to _n_a_m_e, except for
changing the --nn attribute itself, are performed on the
variable referenced by _n_a_m_e's value. The nameref
attribute cannot be applied to array variables.
--rr Make _n_a_m_es readonly. These names cannot then be assigned
values by subsequent assignment statements or unset.
--tt Give each _n_a_m_e the _t_r_a_c_e attribute. Traced functions
@@ -787,151 +787,153 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
llooggoouutt Exit a login shell.
mmaappffiillee [--nn _c_o_u_n_t] [--OO _o_r_i_g_i_n] [--ss _c_o_u_n_t] [--tt] [--uu _f_d] [--CC _c_a_l_l_b_a_c_k]
[--cc _q_u_a_n_t_u_m] [_a_r_r_a_y]
rreeaaddaarrrraayy [--nn _c_o_u_n_t] [--OO _o_r_i_g_i_n] [--ss _c_o_u_n_t] [--tt] [--uu _f_d] [--CC _c_a_l_l_b_a_c_k]
[--cc _q_u_a_n_t_u_m] [_a_r_r_a_y]
mmaappffiillee [--dd _d_e_l_i_m] [--nn _c_o_u_n_t] [--OO _o_r_i_g_i_n] [--ss _c_o_u_n_t] [--tt] [--uu _f_d] [--CC
_c_a_l_l_b_a_c_k] [--cc _q_u_a_n_t_u_m] [_a_r_r_a_y]
rreeaaddaarrrraayy [--dd _d_e_l_i_m] [--nn _c_o_u_n_t] [--OO _o_r_i_g_i_n] [--ss _c_o_u_n_t] [--tt] [--uu _f_d] [--CC
_c_a_l_l_b_a_c_k] [--cc _q_u_a_n_t_u_m] [_a_r_r_a_y]
Read lines from the standard input into the indexed array vari-
able _a_r_r_a_y, or from file descriptor _f_d if the --uu option is sup-
plied. The variable MMAAPPFFIILLEE is the default _a_r_r_a_y. Options, if
supplied, have the following meanings:
--nn Copy at most _c_o_u_n_t lines. If _c_o_u_n_t is 0, all lines are
--dd The first character of _d_e_l_i_m is used to terminate each
input line, rather than newline.
--nn Copy at most _c_o_u_n_t lines. If _c_o_u_n_t is 0, all lines are
copied.
--OO Begin assigning to _a_r_r_a_y at index _o_r_i_g_i_n. The default
--OO Begin assigning to _a_r_r_a_y at index _o_r_i_g_i_n. The default
index is 0.
--ss Discard the first _c_o_u_n_t lines read.
--tt Remove a trailing newline from each line read.
--uu Read lines from file descriptor _f_d instead of the stan-
--uu Read lines from file descriptor _f_d instead of the stan-
dard input.
--CC Evaluate _c_a_l_l_b_a_c_k each time _q_u_a_n_t_u_m lines are read. The
--CC Evaluate _c_a_l_l_b_a_c_k each time _q_u_a_n_t_u_m lines are read. The
--cc option specifies _q_u_a_n_t_u_m.
--cc Specify the number of lines read between each call to
--cc Specify the number of lines read between each call to
_c_a_l_l_b_a_c_k.
If --CC is specified without --cc, the default quantum is 5000.
If --CC is specified without --cc, the default quantum is 5000.
When _c_a_l_l_b_a_c_k is evaluated, it is supplied the index of the next
array element to be assigned and the line to be assigned to that
element as additional arguments. _c_a_l_l_b_a_c_k is evaluated after
element as additional arguments. _c_a_l_l_b_a_c_k is evaluated after
the line is read but before the array element is assigned.
If not supplied with an explicit origin, mmaappffiillee will clear
If not supplied with an explicit origin, mmaappffiillee will clear
_a_r_r_a_y before assigning to it.
mmaappffiillee returns successfully unless an invalid option or option
argument is supplied, _a_r_r_a_y is invalid or unassignable, or if
mmaappffiillee returns successfully unless an invalid option or option
argument is supplied, _a_r_r_a_y is invalid or unassignable, or if
_a_r_r_a_y is not an indexed array.
ppooppdd [-nn] [+_n] [-_n]
Removes entries from the directory stack. With no arguments,
removes the top directory from the stack, and performs a ccdd to
Removes entries from the directory stack. With no arguments,
removes the top directory from the stack, and performs a ccdd to
the new top directory. Arguments, if supplied, have the follow-
ing meanings:
--nn Suppresses the normal change of directory when removing
directories from the stack, so that only the stack is
--nn Suppresses the normal change of directory when removing
directories from the stack, so that only the stack is
manipulated.
++_n Removes the _nth entry counting from the left of the list
shown by ddiirrss, starting with zero. For example: ``popd
++_n Removes the _nth entry counting from the left of the list
shown by ddiirrss, starting with zero. For example: ``popd
+0'' removes the first directory, ``popd +1'' the second.
--_n Removes the _nth entry counting from the right of the list
shown by ddiirrss, starting with zero. For example: ``popd
-0'' removes the last directory, ``popd -1'' the next to
shown by ddiirrss, starting with zero. For example: ``popd
-0'' removes the last directory, ``popd -1'' the next to
last.
If the ppooppdd command is successful, a ddiirrss is performed as well,
and the return status is 0. ppooppdd returns false if an invalid
If the ppooppdd command is successful, a ddiirrss is performed as well,
and the return status is 0. ppooppdd returns false if an invalid
option is encountered, the directory stack is empty, a non-exis-
tent directory stack entry is specified, or the directory change
fails.
pprriinnttff [--vv _v_a_r] _f_o_r_m_a_t [_a_r_g_u_m_e_n_t_s]
Write the formatted _a_r_g_u_m_e_n_t_s to the standard output under the
control of the _f_o_r_m_a_t. The --vv option causes the output to be
assigned to the variable _v_a_r rather than being printed to the
Write the formatted _a_r_g_u_m_e_n_t_s to the standard output under the
control of the _f_o_r_m_a_t. The --vv option causes the output to be
assigned to the variable _v_a_r rather than being printed to the
standard output.
The _f_o_r_m_a_t is a character string which contains three types of
objects: plain characters, which are simply copied to standard
output, character escape sequences, which are converted and
copied to the standard output, and format specifications, each
of which causes printing of the next successive _a_r_g_u_m_e_n_t. In
The _f_o_r_m_a_t is a character string which contains three types of
objects: plain characters, which are simply copied to standard
output, character escape sequences, which are converted and
copied to the standard output, and format specifications, each
of which causes printing of the next successive _a_r_g_u_m_e_n_t. In
addition to the standard _p_r_i_n_t_f(1) format specifications, pprriinnttff
interprets the following extensions:
%%bb causes pprriinnttff to expand backslash escape sequences in the
corresponding _a_r_g_u_m_e_n_t (except that \\cc terminates output,
backslashes in \\'', \\"", and \\?? are not removed, and octal
backslashes in \\'', \\"", and \\?? are not removed, and octal
escapes beginning with \\00 may contain up to four digits).
%%qq causes pprriinnttff to output the corresponding _a_r_g_u_m_e_n_t in a
%%qq causes pprriinnttff to output the corresponding _a_r_g_u_m_e_n_t in a
format that can be reused as shell input.
%%((_d_a_t_e_f_m_t))TT
causes pprriinnttff to output the date-time string resulting
from using _d_a_t_e_f_m_t as a format string for _s_t_r_f_t_i_m_e(3).
causes pprriinnttff to output the date-time string resulting
from using _d_a_t_e_f_m_t as a format string for _s_t_r_f_t_i_m_e(3).
The corresponding _a_r_g_u_m_e_n_t is an integer representing the
number of seconds since the epoch. Two special argument
values may be used: -1 represents the current time, and
-2 represents the time the shell was invoked. If no
argument is specified, conversion behaves as if -1 had
been given. This is an exception to the usual pprriinnttff
number of seconds since the epoch. Two special argument
values may be used: -1 represents the current time, and
-2 represents the time the shell was invoked. If no
argument is specified, conversion behaves as if -1 had
been given. This is an exception to the usual pprriinnttff
behavior.
Arguments to non-string format specifiers are treated as C con-
Arguments to non-string format specifiers are treated as C con-
stants, except that a leading plus or minus sign is allowed, and
if the leading character is a single or double quote, the value
if the leading character is a single or double quote, the value
is the ASCII value of the following character.
The _f_o_r_m_a_t is reused as necessary to consume all of the _a_r_g_u_-
The _f_o_r_m_a_t is reused as necessary to consume all of the _a_r_g_u_-
_m_e_n_t_s. If the _f_o_r_m_a_t requires more _a_r_g_u_m_e_n_t_s than are supplied,
the extra format specifications behave as if a zero value or
null string, as appropriate, had been supplied. The return
the extra format specifications behave as if a zero value or
null string, as appropriate, had been supplied. The return
value is zero on success, non-zero on failure.
ppuusshhdd [--nn] [+_n] [-_n]
ppuusshhdd [--nn] [_d_i_r]
Adds a directory to the top of the directory stack, or rotates
the stack, making the new top of the stack the current working
Adds a directory to the top of the directory stack, or rotates
the stack, making the new top of the stack the current working
directory. With no arguments, exchanges the top two directories
and returns 0, unless the directory stack is empty. Arguments,
and returns 0, unless the directory stack is empty. Arguments,
if supplied, have the following meanings:
--nn Suppresses the normal change of directory when adding
directories to the stack, so that only the stack is
--nn Suppresses the normal change of directory when adding
directories to the stack, so that only the stack is
manipulated.
++_n Rotates the stack so that the _nth directory (counting
from the left of the list shown by ddiirrss, starting with
++_n Rotates the stack so that the _nth directory (counting
from the left of the list shown by ddiirrss, starting with
zero) is at the top.
--_n Rotates the stack so that the _nth directory (counting
from the right of the list shown by ddiirrss, starting with
--_n Rotates the stack so that the _nth directory (counting
from the right of the list shown by ddiirrss, starting with
zero) is at the top.
_d_i_r Adds _d_i_r to the directory stack at the top, making it the
new current working directory as if it had been supplied
new current working directory as if it had been supplied
as the argument to the ccdd builtin.
If the ppuusshhdd command is successful, a ddiirrss is performed as well.
If the first form is used, ppuusshhdd returns 0 unless the cd to _d_i_r
fails. With the second form, ppuusshhdd returns 0 unless the direc-
tory stack is empty, a non-existent directory stack element is
specified, or the directory change to the specified new current
If the first form is used, ppuusshhdd returns 0 unless the cd to _d_i_r
fails. With the second form, ppuusshhdd returns 0 unless the direc-
tory stack is empty, a non-existent directory stack element is
specified, or the directory change to the specified new current
directory fails.
ppwwdd [--LLPP]
Print the absolute pathname of the current working directory.
Print the absolute pathname of the current working directory.
The pathname printed contains no symbolic links if the --PP option
is supplied or the --oo pphhyyssiiccaall option to the sseett builtin command
is enabled. If the --LL option is used, the pathname printed may
contain symbolic links. The return status is 0 unless an error
occurs while reading the name of the current directory or an
is enabled. If the --LL option is used, the pathname printed may
contain symbolic links. The return status is 0 unless an error
occurs while reading the name of the current directory or an
invalid option is supplied.
rreeaadd [--eerrss] [--aa _a_n_a_m_e] [--dd _d_e_l_i_m] [--ii _t_e_x_t] [--nn _n_c_h_a_r_s] [--NN _n_c_h_a_r_s] [--pp
_p_r_o_m_p_t] [--tt _t_i_m_e_o_u_t] [--uu _f_d] [_n_a_m_e ...]
One line is read from the standard input, or from the file
descriptor _f_d supplied as an argument to the --uu option, and the
One line is read from the standard input, or from the file
descriptor _f_d supplied as an argument to the --uu option, and the
first word is assigned to the first _n_a_m_e, the second word to the
second _n_a_m_e, and so on, with leftover words and their interven-
ing separators assigned to the last _n_a_m_e. If there are fewer
second _n_a_m_e, and so on, with leftover words and their interven-
ing separators assigned to the last _n_a_m_e. If there are fewer
words read from the input stream than names, the remaining names
are assigned empty values. The characters in IIFFSS are used to
split the line into words using the same rules the shell uses
are assigned empty values. The characters in IIFFSS are used to
split the line into words using the same rules the shell uses
for expansion (described above under WWoorrdd SSpplliittttiinngg). The back-
slash character (\\) may be used to remove any special meaning
slash character (\\) may be used to remove any special meaning
for the next character read and for line continuation. Options,
if supplied, have the following meanings:
--aa _a_n_a_m_e
@@ -940,81 +942,86 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
new values are assigned. Other _n_a_m_e arguments are
ignored.
--dd _d_e_l_i_m
The first character of _d_e_l_i_m is used to terminate the
The first character of _d_e_l_i_m is used to terminate the
input line, rather than newline.
--ee If the standard input is coming from a terminal, rreeaaddlliinnee
(see RREEAADDLLIINNEE above) is used to obtain the line. Read-
line uses the current (or default, if line editing was
(see RREEAADDLLIINNEE above) is used to obtain the line. Read-
line uses the current (or default, if line editing was
not previously active) editing settings.
--ii _t_e_x_t
If rreeaaddlliinnee is being used to read the line, _t_e_x_t is
If rreeaaddlliinnee is being used to read the line, _t_e_x_t is
placed into the editing buffer before editing begins.
--nn _n_c_h_a_r_s
rreeaadd returns after reading _n_c_h_a_r_s characters rather than
waiting for a complete line of input, but honor a delim-
iter if fewer than _n_c_h_a_r_s characters are read before the
rreeaadd returns after reading _n_c_h_a_r_s characters rather than
waiting for a complete line of input, but honor a delim-
iter if fewer than _n_c_h_a_r_s characters are read before the
delimiter.
--NN _n_c_h_a_r_s
rreeaadd returns after reading exactly _n_c_h_a_r_s characters
rather than waiting for a complete line of input, unless
EOF is encountered or rreeaadd times out. Delimiter charac-
ters encountered in the input are not treated specially
and do not cause rreeaadd to return until _n_c_h_a_r_s characters
rreeaadd returns after reading exactly _n_c_h_a_r_s characters
rather than waiting for a complete line of input, unless
EOF is encountered or rreeaadd times out. Delimiter charac-
ters encountered in the input are not treated specially
and do not cause rreeaadd to return until _n_c_h_a_r_s characters
are read.
--pp _p_r_o_m_p_t
Display _p_r_o_m_p_t on standard error, without a trailing new-
line, before attempting to read any input. The prompt is
displayed only if input is coming from a terminal.
--rr Backslash does not act as an escape character. The back-
slash is considered to be part of the line. In particu-
lar, a backslash-newline pair may not be used as a line
slash is considered to be part of the line. In particu-
lar, a backslash-newline pair may not be used as a line
continuation.
--ss Silent mode. If input is coming from a terminal, charac-
ters are not echoed.
--tt _t_i_m_e_o_u_t
Cause rreeaadd to time out and return failure if a complete
line of input (or a specified number of characters) is
not read within _t_i_m_e_o_u_t seconds. _t_i_m_e_o_u_t may be a deci-
mal number with a fractional portion following the deci-
mal point. This option is only effective if rreeaadd is
reading input from a terminal, pipe, or other special
file; it has no effect when reading from regular files.
Cause rreeaadd to time out and return failure if a complete
line of input (or a specified number of characters) is
not read within _t_i_m_e_o_u_t seconds. _t_i_m_e_o_u_t may be a deci-
mal number with a fractional portion following the deci-
mal point. This option is only effective if rreeaadd is
reading input from a terminal, pipe, or other special
file; it has no effect when reading from regular files.
If rreeaadd times out, rreeaadd saves any partial input read into
the specified variable _n_a_m_e. If _t_i_m_e_o_u_t is 0, rreeaadd
returns immediately, without trying to read any data.
The exit status is 0 if input is available on the speci-
fied file descriptor, non-zero otherwise. The exit sta-
the specified variable _n_a_m_e. If _t_i_m_e_o_u_t is 0, rreeaadd
returns immediately, without trying to read any data.
The exit status is 0 if input is available on the speci-
fied file descriptor, non-zero otherwise. The exit sta-
tus is greater than 128 if the timeout is exceeded.
--uu _f_d Read input from file descriptor _f_d.
If no _n_a_m_e_s are supplied, the line read is assigned to the vari-
able RREEPPLLYY. The return code is zero, unless end-of-file is
encountered, rreeaadd times out (in which case the return code is
greater than 128), a variable assignment error (such as assign-
ing to a readonly variable) occurs, or an invalid file descrip-
able RREEPPLLYY. The return code is zero, unless end-of-file is
encountered, rreeaadd times out (in which case the return code is
greater than 128), a variable assignment error (such as assign-
ing to a readonly variable) occurs, or an invalid file descrip-
tor is supplied as the argument to --uu.
rreeaaddoonnllyy [--aaAAff] [--pp] [_n_a_m_e[=_w_o_r_d] ...]
The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s
may not be changed by subsequent assignment. If the --ff option
is supplied, the functions corresponding to the _n_a_m_e_s are so
marked. The --aa option restricts the variables to indexed
arrays; the --AA option restricts the variables to associative
arrays. If both options are supplied, --AA takes precedence. If
no _n_a_m_e arguments are given, or if the --pp option is supplied, a
The given _n_a_m_e_s are marked readonly; the values of these _n_a_m_e_s
may not be changed by subsequent assignment. If the --ff option
is supplied, the functions corresponding to the _n_a_m_e_s are so
marked. The --aa option restricts the variables to indexed
arrays; the --AA option restricts the variables to associative
arrays. If both options are supplied, --AA takes precedence. If
no _n_a_m_e arguments are given, or if the --pp option is supplied, a
list of all readonly names is printed. The other options may be
used to restrict the output to a subset of the set of readonly
names. The --pp option causes output to be displayed in a format
that may be reused as input. If a variable name is followed by
=_w_o_r_d, the value of the variable is set to _w_o_r_d. The return
status is 0 unless an invalid option is encountered, one of the
used to restrict the output to a subset of the set of readonly
names. The --pp option causes output to be displayed in a format
that may be reused as input. If a variable name is followed by
=_w_o_r_d, the value of the variable is set to _w_o_r_d. The return
status is 0 unless an invalid option is encountered, one of the
_n_a_m_e_s is not a valid shell variable name, or --ff is supplied with
a _n_a_m_e that is not a function.
rreettuurrnn [_n]
Causes a function to stop executing and return the value speci-
fied by _n to its caller. If _n is omitted, the return status is
that of the last command executed in the function body. If
Causes a function to stop executing and return the value speci-
fied by _n to its caller. If _n is omitted, the return status is
that of the last command executed in the function body. If
rreettuurrnn is executed by a trap handler, the last command used to
determine the status is the last command executed before the
trap handler. if rreettuurrnn is executed during a DDEEBBUUGG trap, the
last command used to determine the status is the last command
executed by the trap handler before rreettuurrnn was invoked. If
rreettuurrnn is used outside a function, but during execution of a
script by the .. (ssoouurrccee) command, it causes the shell to stop
executing that script and return either _n or the exit status of
@@ -1046,18 +1053,18 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
is effective only when job control is enabled.
--ee Exit immediately if a _p_i_p_e_l_i_n_e (which may consist of a
single _s_i_m_p_l_e _c_o_m_m_a_n_d), a _l_i_s_t, or a _c_o_m_p_o_u_n_d _c_o_m_m_a_n_d
(see SSHHEELLLL GGRRAAMMMMAARR above), exits with a non-zero sta-
tus. The shell does not exit if the command that fails
is part of the command list immediately following a
wwhhiillee or uunnttiill keyword, part of the test following the
iiff or eelliiff reserved words, part of any command executed
in a &&&& or |||| list except the command following the
final &&&& or ||||, any command in a pipeline but the last,
or if the command's return value is being inverted with
!!. If a compound command other than a subshell returns
a non-zero status because a command failed while --ee was
being ignored, the shell does not exit. A trap on EERRRR,
if set, is executed before the shell exits. This option
(see SSHHEELLLL GGRRAAMMMMAARR above), exits with a non-zero status.
The shell does not exit if the command that fails is
part of the command list immediately following a wwhhiillee
or uunnttiill keyword, part of the test following the iiff or
eelliiff reserved words, part of any command executed in a
&&&& or |||| list except the command following the final &&&&
or ||||, any command in a pipeline but the last, or if the
command's return value is being inverted with !!. If a
compound command other than a subshell returns a non-
zero status because a command failed while --ee was being
ignored, the shell does not exit. A trap on EERRRR, if
set, is executed before the shell exits. This option
applies to the shell environment and each subshell envi-
ronment separately (see CCOOMMMMAANNDD EEXXEECCUUTTIIOONN EENNVVIIRROONNMMEENNTT
above), and may cause subshells to exit before executing
@@ -1364,14 +1371,14 @@ BBAASSHH BBUUIILLTTIINN CCOOMMMMAANNDDSS
33.. If the command run by the DDEEBBUUGG trap returns a
value of 2, and the shell is executing in a sub-
routine (a shell function or a shell script exe-
cuted by the .. or ssoouurrccee builtins), a call to
rreettuurrnn is simulated.
cuted by the .. or ssoouurrccee builtins), the shell
simulates a call to rreettuurrnn.
44.. BBAASSHH__AARRGGCC and BBAASSHH__AARRGGVV are updated as described
in their descriptions above.
55.. Function tracing is enabled: command substitu-
55.. Function tracing is enabled: command substitu-
tion, shell functions, and subshells invoked with
(( _c_o_m_m_a_n_d )) inherit the DDEEBBUUGG and RREETTUURRNN traps.
66.. Error tracing is enabled: command substitution,
66.. Error tracing is enabled: command substitution,
shell functions, and subshells invoked with ((
_c_o_m_m_a_n_d )) inherit the EERRRR trap.
eexxttgglloobb If set, the extended pattern matching features described