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interim fix for generic list functions to avoid pointer aliasing issues; documentation updates

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Chet Ramey
2026-05-08 11:36:36 -04:00
parent 330223688c
commit 669b32f676
36 changed files with 1124 additions and 889 deletions
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doc/bash.html
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@@ -1,5 +1,5 @@
<!-- Creator : groff version 1.23.0 -->
<!-- CreationDate: Mon Mar 16 15:46:12 2026 -->
<!-- CreationDate: Wed Apr 29 10:18:50 2026 -->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
@@ -458,11 +458,19 @@ determined by <i>isatty</i>(3)), or one started with the
<b>i</b> if the shell is interactive, so a shell script or a
startup file can test this state.</p>
<p style="margin-left:9%; margin-top: 1em">A
<i>non-interactive shell</i> is, not surprisingly, one that
does not satisfy the tests for interactivity given above. A
non-interactive shell is usually started to run commands
from a script file supplied as an argument (a <i>shell
script</i>) or from a string supplied with the
<b>&minus;c</b> option.</p>
<p style="margin-left:9%; margin-top: 1em">The following
paragraphs describe how <b>bash</b> executes its startup
files. If any of the files exist but cannot be read,
<b>bash</b> reports an error. Tildes are expanded in
filenames as described below under <b>Tilde Expansion</b> in
<b>bash</b> reports an error. Tildes in filenames are
expanded as described below under <b>Tilde Expansion</b> in
the <b><small>EXPANSION</small></b> section.</p>
<p style="margin-left:9%; margin-top: 1em">When <b>bash</b>
@@ -493,8 +501,7 @@ interactive shell that is not a login shell is started,
<A HREF="file:~/.bashrc"><i>~/.bashrc</i></A>.</p>
<p style="margin-left:9%; margin-top: 1em">When <b>bash</b>
is started non-interactively, to run a shell script, for
example, it looks for the variable
is started non-interactively, it looks for the variable
<b><small>BASH_ENV</small></b> in the environment, expands
its value if it appears there, and uses the expanded value
as the name of a file to read and execute. <b>Bash</b>
@@ -539,14 +546,15 @@ is started in posix mode, as with the
the <small>POSIX</small> standard for startup files. In this
mode, interactive shells expand the
<b><small>ENV</small></b> variable and read and execute
commands from the file whose name is the expanded value. No
other startup files are read.</p>
commands from the file whose name is the expanded value. A
posix-mode shell does not attempt to read any other startup
files, even when invoked as a login shell.</p>
<p style="margin-left:9%; margin-top: 1em"><b>Bash</b>
attempts to determine when it is being run with its standard
input connected to a network connection, as when executed by
the historical and rarely-seen remote shell daemon, usually
<i>rshd</i>, or the secure shell daemon <i>sshd</i>. If
the secure shell daemon <i>sshd</i> or the historical and
rarely-seen remote shell daemon, usually <i>rshd</i>. If
<b>bash</b> determines it is being run non-interactively in
this fashion, it reads and executes commands from
<A HREF="file:~/.bashrc"><i>~/.bashrc</i></A>, if that file exists and is readable.
@@ -554,7 +562,7 @@ this fashion, it reads and executes commands from
The <b>&minus;&minus;norc</b> option inhibits this behavior,
and the <b>&minus;&minus;rcfile</b> option makes <b>bash</b>
use a different file instead of <A HREF="file:~/.bashrc"><i>~/.bashrc</i></A>, but
neither <i>rshd</i> nor <i>sshd</i> generally invoke the
neither <i>sshd</i> nor <i>rshd</i> generally invoke the
shell with those options or allow them to be specified.</p>
<p style="margin-left:9%; margin-top: 1em">If the shell is
@@ -567,8 +575,8 @@ inherited from the environment, the
variables, if they appear in the environment, are ignored,
and the effective user id is set to the real user id. If the
<b>&minus;p</b> option is supplied at invocation, the
startup behavior is the same, but the effective user id is
not reset.</p>
startup behavior is the same, but <b>bash</b> does not reset
the effective user id.</p>
<h2>DEFINITIONS
<a name="DEFINITIONS"></a>