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diff --git a/share/doc/gdb/Shell-Commands.html b/share/doc/gdb/Shell-Commands.html new file mode 100644 index 0000000..4c68b18 --- /dev/null +++ b/share/doc/gdb/Shell-Commands.html @@ -0,0 +1,171 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Free Software" and "Free Software Needs +Free Documentation", with the Front-Cover Texts being "A GNU Manual," +and with the Back-Cover Texts as in (a) below. + +(a) The FSF's Back-Cover Text is: "You are free to copy and modify +this GNU Manual. Buying copies from GNU Press supports the FSF in +developing GNU and promoting software freedom." --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Debugging with GDB: Shell Commands</title> + +<meta name="description" content="Debugging with GDB: Shell Commands"> +<meta name="keywords" content="Debugging with GDB: Shell Commands"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Invocation.html#Invocation" rel="up" title="Invocation"> +<link href="Logging-Output.html#Logging-Output" rel="next" title="Logging Output"> +<link href="Quitting-GDB.html#Quitting-GDB" rel="previous" title="Quitting GDB"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="Shell-Commands"></a> +<div class="header"> +<p> +Next: <a href="Logging-Output.html#Logging-Output" accesskey="n" rel="next">Logging Output</a>, Previous: <a href="Quitting-GDB.html#Quitting-GDB" accesskey="p" rel="previous">Quitting GDB</a>, Up: <a href="Invocation.html#Invocation" accesskey="u" rel="up">Invocation</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Shell-Commands-1"></a> +<h3 class="section">2.3 Shell Commands</h3> + +<p>If you need to execute occasional shell commands during your +debugging session, there is no need to leave or suspend <small>GDB</small>; you can +just use the <code>shell</code> command. +</p> +<dl compact="compact"> +<dd><a name="index-shell"></a> +<a name="index-_0021"></a> +<a name="index-shell-escape"></a> +</dd> +<dt><code>shell <var>command-string</var></code></dt> +<dt><code>!<var>command-string</var></code></dt> +<dd><p>Invoke a standard shell to execute <var>command-string</var>. +Note that no space is needed between <code>!</code> and <var>command-string</var>. +On GNU and Unix systems, the environment variable <code>SHELL</code>, if it +exists, determines which shell to run. Otherwise <small>GDB</small> uses +the default shell (<samp>/bin/sh</samp> on GNU and Unix systems, +<samp>cmd.exe</samp> on MS-Windows, <samp>COMMAND.COM</samp> on MS-DOS, etc.). +</p></dd> +</dl> + +<p>The utility <code>make</code> is often needed in development environments. +You do not have to use the <code>shell</code> command for this purpose in +<small>GDB</small>: +</p> +<dl compact="compact"> +<dd><a name="index-make"></a> +<a name="index-calling-make"></a> +</dd> +<dt><code>make <var>make-args</var></code></dt> +<dd><p>Execute the <code>make</code> program with the specified +arguments. This is equivalent to ‘<samp>shell make <var>make-args</var></samp>’. +</p></dd> +</dl> + +<dl compact="compact"> +<dd><a name="index-pipe"></a> +<a name="index-_007c"></a> +<a name="index-send-the-output-of-a-gdb-command-to-a-shell-command"></a> +<a name="pipe"></a></dd> +<dt><code>pipe [<var>command</var>] | <var>shell_command</var></code></dt> +<dt><code>| [<var>command</var>] | <var>shell_command</var></code></dt> +<dt><code>pipe -d <var>delim</var> <var>command</var> <var>delim</var> <var>shell_command</var></code></dt> +<dt><code>| -d <var>delim</var> <var>command</var> <var>delim</var> <var>shell_command</var></code></dt> +<dd><p>Executes <var>command</var> and sends its output to <var>shell_command</var>. +Note that no space is needed around <code>|</code>. +If no <var>command</var> is provided, the last command executed is repeated. +</p> +<p>In case the <var>command</var> contains a <code>|</code>, the option <code>-d <var>delim</var></code> +can be used to specify an alternate delimiter string <var>delim</var> that separates +the <var>command</var> from the <var>shell_command</var>. +</p> +<p>Example: +</p><div class="smallexample"> +<pre class="smallexample">(gdb) p var +$1 = { + black = 144, + red = 233, + green = 377, + blue = 610, + white = 987 +} +</pre><pre class="smallexample">(gdb) pipe p var|wc + 7 19 80 +(gdb) |p var|wc -l +7 +</pre><pre class="smallexample">(gdb) p /x var +$4 = { + black = 0x90, + red = 0xe9, + green = 0x179, + blue = 0x262, + white = 0x3db +} +(gdb) ||grep red + red => 0xe9, +</pre><pre class="smallexample">(gdb) | -d ! echo this contains a | char\n ! sed -e 's/|/PIPE/' +this contains a PIPE char +(gdb) | -d xxx echo this contains a | char!\n xxx sed -e 's/|/PIPE/' +this contains a PIPE char! +(gdb) +</pre></div> +</dd> +</dl> + +<p>The convenience variables <code>$_shell_exitcode</code> and <code>$_shell_exitsignal</code> +can be used to examine the exit status of the last shell command launched +by <code>shell</code>, <code>make</code>, <code>pipe</code> and <code>|</code>. +See <a href="Convenience-Vars.html#Convenience-Vars">Convenience Variables</a>. +</p> +<hr> +<div class="header"> +<p> +Next: <a href="Logging-Output.html#Logging-Output" accesskey="n" rel="next">Logging Output</a>, Previous: <a href="Quitting-GDB.html#Quitting-GDB" accesskey="p" rel="previous">Quitting GDB</a>, Up: <a href="Invocation.html#Invocation" accesskey="u" rel="up">Invocation</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |