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<title>Commands For History (Debugging with GDB)</title>

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<a name="Commands-For-History"></a>
<div class="header">
<p>
Next: <a href="Commands-For-Text.html#Commands-For-Text" accesskey="n" rel="next">Commands For Text</a>, Previous: <a href="Commands-For-Moving.html#Commands-For-Moving" accesskey="p" rel="prev">Commands For Moving</a>, Up: <a href="Bindable-Readline-Commands.html#Bindable-Readline-Commands" accesskey="u" rel="up">Bindable Readline Commands</a> &nbsp; [<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="Commands-For-Manipulating-The-History"></a>
<h4 class="subsection">32.4.2 Commands For Manipulating The History</h4>

<dl compact="compact">
<dt><code>accept-line (Newline or Return)</code>
<a name="index-accept_002dline-_0028Newline-or-Return_0029"></a>
</dt>
<dd><p>Accept the line regardless of where the cursor is.
If this line is
non-empty, it may be added to the history list for future recall with
<code>add_history()</code>.
If this line is a modified history line, the history line is restored
to its original state.
</p>
</dd>
<dt><code>previous-history (C-p)</code>
<a name="index-previous_002dhistory-_0028C_002dp_0029"></a>
</dt>
<dd><p>Move &lsquo;back&rsquo; through the history list, fetching the previous command.
</p>
</dd>
<dt><code>next-history (C-n)</code>
<a name="index-next_002dhistory-_0028C_002dn_0029"></a>
</dt>
<dd><p>Move &lsquo;forward&rsquo; through the history list, fetching the next command.
</p>
</dd>
<dt><code>beginning-of-history (M-&lt;)</code>
<a name="index-beginning_002dof_002dhistory-_0028M_002d_003c_0029"></a>
</dt>
<dd><p>Move to the first line in the history.
</p>
</dd>
<dt><code>end-of-history (M-&gt;)</code>
<a name="index-end_002dof_002dhistory-_0028M_002d_003e_0029"></a>
</dt>
<dd><p>Move to the end of the input history, i.e., the line currently
being entered.
</p>
</dd>
<dt><code>reverse-search-history (C-r)</code>
<a name="index-reverse_002dsearch_002dhistory-_0028C_002dr_0029"></a>
</dt>
<dd><p>Search backward starting at the current line and moving &lsquo;up&rsquo; through
the history as necessary.  This is an incremental search.
</p>
</dd>
<dt><code>forward-search-history (C-s)</code>
<a name="index-forward_002dsearch_002dhistory-_0028C_002ds_0029"></a>
</dt>
<dd><p>Search forward starting at the current line and moving &lsquo;down&rsquo; through
the history as necessary.  This is an incremental search.
</p>
</dd>
<dt><code>non-incremental-reverse-search-history (M-p)</code>
<a name="index-non_002dincremental_002dreverse_002dsearch_002dhistory-_0028M_002dp_0029"></a>
</dt>
<dd><p>Search backward starting at the current line and moving &lsquo;up&rsquo;
through the history as necessary using a non-incremental search
for a string supplied by the user.
The search string may match anywhere in a history line.
</p>
</dd>
<dt><code>non-incremental-forward-search-history (M-n)</code>
<a name="index-non_002dincremental_002dforward_002dsearch_002dhistory-_0028M_002dn_0029"></a>
</dt>
<dd><p>Search forward starting at the current line and moving &lsquo;down&rsquo;
through the history as necessary using a non-incremental search
for a string supplied by the user.
The search string may match anywhere in a history line.
</p>
</dd>
<dt><code>history-search-forward ()</code>
<a name="index-history_002dsearch_002dforward-_0028_0029"></a>
</dt>
<dd><p>Search forward through the history for the string of characters
between the start of the current line and the point.
The search string must match at the beginning of a history line.
This is a non-incremental search.
By default, this command is unbound.
</p>
</dd>
<dt><code>history-search-backward ()</code>
<a name="index-history_002dsearch_002dbackward-_0028_0029"></a>
</dt>
<dd><p>Search backward through the history for the string of characters
between the start of the current line and the point.
The search string must match at the beginning of a history line.
This is a non-incremental search.
By default, this command is unbound.
</p>
</dd>
<dt><code>history-substring-search-forward ()</code>
<a name="index-history_002dsubstring_002dsearch_002dforward-_0028_0029"></a>
</dt>
<dd><p>Search forward through the history for the string of characters
between the start of the current line and the point.
The search string may match anywhere in a history line.
This is a non-incremental search.
By default, this command is unbound.
</p>
</dd>
<dt><code>history-substring-search-backward ()</code>
<a name="index-history_002dsubstring_002dsearch_002dbackward-_0028_0029"></a>
</dt>
<dd><p>Search backward through the history for the string of characters
between the start of the current line and the point.
The search string may match anywhere in a history line.
This is a non-incremental search.
By default, this command is unbound.
</p>
</dd>
<dt><code>yank-nth-arg (M-C-y)</code>
<a name="index-yank_002dnth_002darg-_0028M_002dC_002dy_0029"></a>
</dt>
<dd><p>Insert the first argument to the previous command (usually
the second word on the previous line) at point.
With an argument <var>n</var>,
insert the <var>n</var>th word from the previous command (the words
in the previous command begin with word 0).  A negative argument
inserts the <var>n</var>th word from the end of the previous command.
Once the argument <var>n</var> is computed, the argument is extracted
as if the &lsquo;<samp>!<var>n</var></samp>&rsquo; history expansion had been specified.
</p>
</dd>
<dt><code>yank-last-arg (M-. or M-_)</code>
<a name="index-yank_002dlast_002darg-_0028M_002d_002e-or-M_002d_005f_0029"></a>
</dt>
<dd><p>Insert last argument to the previous command (the last word of the
previous history entry).
With a numeric argument, behave exactly like <code>yank-nth-arg</code>.
Successive calls to <code>yank-last-arg</code> move back through the history
list, inserting the last word (or the word specified by the argument to
the first call) of each line in turn.
Any numeric argument supplied to these successive calls determines
the direction to move through the history.  A negative argument switches
the direction through the history (back or forward).
The history expansion facilities are used to extract the last argument,
as if the &lsquo;<samp>!$</samp>&rsquo; history expansion had been specified.
</p>
</dd>
</dl>

<hr>
<div class="header">
<p>
Next: <a href="Commands-For-Text.html#Commands-For-Text" accesskey="n" rel="next">Commands For Text</a>, Previous: <a href="Commands-For-Moving.html#Commands-For-Moving" accesskey="p" rel="prev">Commands For Moving</a>, Up: <a href="Bindable-Readline-Commands.html#Bindable-Readline-Commands" accesskey="u" rel="up">Bindable Readline Commands</a> &nbsp; [<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>
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