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79 lines
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<title>Shell Commands - Debugging with GDB</title>
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<a name="Shell-Commands"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Logging-Output.html#Logging-Output">Logging Output</a>,
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Previous: <a rel="previous" accesskey="p" href="Quitting-GDB.html#Quitting-GDB">Quitting GDB</a>,
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Up: <a rel="up" accesskey="u" href="Invocation.html#Invocation">Invocation</a>
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<h3 class="section">2.3 Shell Commands</h3>
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<p>If you need to execute occasional shell commands during your
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debugging session, there is no need to leave or suspend <span class="sc">gdb</span>; you can
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just use the <code>shell</code> command.
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<a name="index-shell-67"></a>
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<a name="index-g_t_0021-68"></a>
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<a name="index-shell-escape-69"></a>
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<dl><dt><code>shell </code><var>command-string</var><dt><code>!</code><var>command-string</var><dd>Invoke a standard shell to execute <var>command-string</var>.
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Note that no space is needed between <code>!</code> and <var>command-string</var>.
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If it exists, the environment variable <code>SHELL</code> determines which
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shell to run. Otherwise <span class="sc">gdb</span> uses the default shell
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(<samp><span class="file">/bin/sh</span></samp> on Unix systems, <samp><span class="file">COMMAND.COM</span></samp> on MS-DOS, etc.).
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</dl>
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<p>The utility <code>make</code> is often needed in development environments.
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You do not have to use the <code>shell</code> command for this purpose in
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<span class="sc">gdb</span>:
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<a name="index-make-70"></a>
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<a name="index-calling-make-71"></a>
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<dl><dt><code>make </code><var>make-args</var><dd>Execute the <code>make</code> program with the specified
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arguments. This is equivalent to ‘<samp><span class="samp">shell make </span><var>make-args</var></samp>’.
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</dl>
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</body></html>
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