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79 lines
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<title>Editing - Debugging with GDB</title>
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<a name="Editing"></a>
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Next: <a rel="next" accesskey="n" href="Command-History.html#Command-History">Command History</a>,
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Previous: <a rel="previous" accesskey="p" href="Prompt.html#Prompt">Prompt</a>,
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Up: <a rel="up" accesskey="u" href="Controlling-GDB.html#Controlling-GDB">Controlling GDB</a>
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</div>
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<h3 class="section">22.2 Command Editing</h3>
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<p><a name="index-readline-1655"></a><a name="index-command-line-editing-1656"></a>
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<span class="sc">gdb</span> reads its input commands via the <dfn>Readline</dfn> interface. This
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<span class="sc">gnu</span> library provides consistent behavior for programs which provide a
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command line interface to the user. Advantages are <span class="sc">gnu</span> Emacs-style
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or <dfn>vi</dfn>-style inline editing of commands, <code>csh</code>-like history
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substitution, and a storage and recall of command history across
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debugging sessions.
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<p>You may control the behavior of command line editing in <span class="sc">gdb</span> with the
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command <code>set</code>.
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<a name="index-set-editing-1657"></a>
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<a name="index-editing-1658"></a>
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<dl><dt><code>set editing</code><dt><code>set editing on</code><dd>Enable command line editing (enabled by default).
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<br><dt><code>set editing off</code><dd>Disable command line editing.
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<p><a name="index-show-editing-1659"></a><br><dt><code>show editing</code><dd>Show whether command line editing is enabled.
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</dl>
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<p>See <a href="Command-Line-Editing.html#Command-Line-Editing">Command Line Editing</a>,
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for more details about the Readline
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interface. Users unfamiliar with <span class="sc">gnu</span> Emacs or <code>vi</code> are
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encouraged to read that chapter.
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