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130 lines
4.9 KiB
HTML
130 lines
4.9 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Modifiers (Debugging with GDB)</title>
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<meta name="description" content="Modifiers (Debugging with GDB)">
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<meta name="keywords" content="Modifiers (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="History-Interaction.html#History-Interaction" rel="up" title="History Interaction">
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<link href="In-Memoriam.html#In-Memoriam" rel="next" title="In Memoriam">
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<link href="Word-Designators.html#Word-Designators" rel="prev" title="Word Designators">
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</style>
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</head>
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<body lang="en">
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<a name="Modifiers"></a>
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<div class="header">
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<p>
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Previous: <a href="Word-Designators.html#Word-Designators" accesskey="p" rel="prev">Word Designators</a>, Up: <a href="History-Interaction.html#History-Interaction" accesskey="u" rel="up">History Interaction</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>
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</div>
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<hr>
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<a name="Modifiers-1"></a>
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<h4 class="subsection">33.1.3 Modifiers</h4>
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<p>After the optional word designator, you can add a sequence of one or more
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of the following modifiers, each preceded by a ‘<samp>:</samp>’.
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</p>
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<dl compact="compact">
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<dt><code>h</code></dt>
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<dd><p>Remove a trailing pathname component, leaving only the head.
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</p>
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</dd>
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<dt><code>t</code></dt>
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<dd><p>Remove all leading pathname components, leaving the tail.
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</p>
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</dd>
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<dt><code>r</code></dt>
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<dd><p>Remove a trailing suffix of the form ‘<samp>.<var>suffix</var></samp>’, leaving
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the basename.
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</p>
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</dd>
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<dt><code>e</code></dt>
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<dd><p>Remove all but the trailing suffix.
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</p>
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</dd>
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<dt><code>p</code></dt>
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<dd><p>Print the new command but do not execute it.
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</p>
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</dd>
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<dt><code>s/<var>old</var>/<var>new</var>/</code></dt>
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<dd><p>Substitute <var>new</var> for the first occurrence of <var>old</var> in the
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event line. Any delimiter may be used in place of ‘<samp>/</samp>’.
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The delimiter may be quoted in <var>old</var> and <var>new</var>
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with a single backslash. If ‘<samp>&</samp>’ appears in <var>new</var>,
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it is replaced by <var>old</var>. A single backslash will quote
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the ‘<samp>&</samp>’. The final delimiter is optional if it is the last
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character on the input line.
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</p>
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</dd>
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<dt><code>&</code></dt>
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<dd><p>Repeat the previous substitution.
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</p>
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</dd>
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<dt><code>g</code></dt>
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<dt><code>a</code></dt>
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<dd><p>Cause changes to be applied over the entire event line. Used in
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conjunction with ‘<samp>s</samp>’, as in <code>gs/<var>old</var>/<var>new</var>/</code>,
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or with ‘<samp>&</samp>’.
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</p>
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</dd>
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<dt><code>G</code></dt>
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<dd><p>Apply the following ‘<samp>s</samp>’ modifier once to each word in the event.
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</p>
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</dd>
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</dl>
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</body>
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</html>
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