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<a name="Modifiers"></a>
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<p>
Previous: <a href="Word-Designators.html#Word-Designators" accesskey="p" rel="previous">Word Designators</a>, Up: <a href="History-Interaction.html#History-Interaction" accesskey="u" rel="up">History Interaction</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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<a name="Modifiers-1"></a>
<h4 class="subsection">33.1.3 Modifiers</h4>

<p>After the optional word designator, you can add a sequence of one or more
of the following modifiers, each preceded by a &lsquo;<samp>:</samp>&rsquo;.
</p>
<dl compact="compact">
<dt><code>h</code></dt>
<dd><p>Remove a trailing pathname component, leaving only the head.
</p>
</dd>
<dt><code>t</code></dt>
<dd><p>Remove all leading pathname components, leaving the tail.
</p>
</dd>
<dt><code>r</code></dt>
<dd><p>Remove a trailing suffix of the form &lsquo;<samp>.<var>suffix</var></samp>&rsquo;, leaving
the basename.
</p>
</dd>
<dt><code>e</code></dt>
<dd><p>Remove all but the trailing suffix.
</p>
</dd>
<dt><code>p</code></dt>
<dd><p>Print the new command but do not execute it.
</p>

</dd>
<dt><code>s/<var>old</var>/<var>new</var>/</code></dt>
<dd><p>Substitute <var>new</var> for the first occurrence of <var>old</var> in the
event line.  Any delimiter may be used in place of &lsquo;<samp>/</samp>&rsquo;.
The delimiter may be quoted in <var>old</var> and <var>new</var>
with a single backslash.  If &lsquo;<samp>&amp;</samp>&rsquo; appears in <var>new</var>,
it is replaced by <var>old</var>.  A single backslash will quote
the &lsquo;<samp>&amp;</samp>&rsquo;.  The final delimiter is optional if it is the last
character on the input line.
</p>
</dd>
<dt><code>&amp;</code></dt>
<dd><p>Repeat the previous substitution.
</p>
</dd>
<dt><code>g</code></dt>
<dt><code>a</code></dt>
<dd><p>Cause changes to be applied over the entire event line.  Used in
conjunction with &lsquo;<samp>s</samp>&rsquo;, as in <code>gs/<var>old</var>/<var>new</var>/</code>,
or with &lsquo;<samp>&amp;</samp>&rsquo;.
</p>
</dd>
<dt><code>G</code></dt>
<dd><p>Apply the following &lsquo;<samp>s</samp>&rsquo; modifier once to each word in the event.
</p>
</dd>
</dl>


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