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Changes to grep/manual/html_node/Matching-Control.html,v
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From: |
Jim Meyering |
|
Subject: |
Changes to grep/manual/html_node/Matching-Control.html,v |
|
Date: |
Wed, 22 Mar 2023 22:55:26 -0400 (EDT) |
CVSROOT: /webcvs/grep
Module name: grep
Changes by: Jim Meyering <meyering> 23/03/22 22:55:22
Index: html_node/Matching-Control.html
===================================================================
RCS file: /webcvs/grep/grep/manual/html_node/Matching-Control.html,v
retrieving revision 1.33
retrieving revision 1.34
diff -u -b -r1.33 -r1.34
--- html_node/Matching-Control.html 3 Sep 2022 19:33:14 -0000 1.33
+++ html_node/Matching-Control.html 23 Mar 2023 02:55:21 -0000 1.34
@@ -1,11 +1,11 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<!DOCTYPE html>
<html>
-<!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ -->
+<!-- Created by GNU Texinfo 7.0dev, https://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<!-- This manual is for grep, a pattern matching engine.
-Copyright (C) 1999-2002, 2005, 2008-2022 Free Software Foundation,
+Copyright © 1999-2002, 2005, 2008-2023 Free Software Foundation,
Inc.
Permission is granted to copy, distribute and/or modify this document
@@ -14,10 +14,10 @@
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of the license is included in the section entitled
"GNU Free Documentation License". -->
-<title>Matching Control (GNU Grep 3.8)</title>
+<title>Matching Control (GNU Grep 3.10)</title>
-<meta name="description" content="Matching Control (GNU Grep 3.8)">
-<meta name="keywords" content="Matching Control (GNU Grep 3.8)">
+<meta name="description" content="Matching Control (GNU Grep 3.10)">
+<meta name="keywords" content="Matching Control (GNU Grep 3.10)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
@@ -31,21 +31,8 @@
<link href="Generic-Program-Information.html" rel="prev" title="Generic
Program Information">
<style type="text/css">
<!--
-a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em}
-a.summary-letter {text-decoration: none}
-blockquote.indentedblock {margin-right: 0em}
-div.display {margin-left: 3.2em}
-div.example {margin-left: 3.2em}
-kbd {font-style: oblique}
-pre.display {font-family: inherit}
-pre.format {font-family: inherit}
-pre.menu-comment {font-family: serif}
-pre.menu-preformatted {font-family: serif}
-span.nolinebreak {white-space: nowrap}
-span.roman {font-family: initial; font-weight: normal}
-span.sansserif {font-family: sans-serif; font-weight: normal}
-span:hover a.copiable-anchor {visibility: visible}
-ul.no-bullet {list-style: none}
+a.copiable-link {visibility: hidden; text-decoration: none; line-height: 0em}
+span:hover a.copiable-link {visibility: visible}
-->
</style>
<link rel="stylesheet" type="text/css"
href="https://www.gnu.org/software/gnulib/manual.css";>
@@ -54,45 +41,48 @@
</head>
<body lang="en">
-<div class="subsection" id="Matching-Control">
-<div class="header">
+<div class="subsection-level-extent" id="Matching-Control">
+<div class="nav-panel">
<p>
Next: <a href="General-Output-Control.html" accesskey="n" rel="next">General
Output Control</a>, Previous: <a href="Generic-Program-Information.html"
accesskey="p" rel="prev">Generic Program Information</a>, Up: <a
href="Command_002dline-Options.html" accesskey="u" rel="up">Command-line
Options</a> [<a href="index.html#SEC_Contents" title="Table of contents"
rel="contents">Contents</a>][<a href="Index.html" title="Index"
rel="index">Index</a>]</p>
</div>
<hr>
-<span id="Matching-Control-1"></span><h4 class="subsection">2.1.2 Matching
Control</h4>
+<h4 class="subsection" id="Matching-Control-1"><span>2.1.2 Matching Control<a
class="copiable-link" href="#Matching-Control-1"> ¶</a></span></h4>
-<dl compact="compact">
-<dt id='index-_002de'><span><samp>-e <var>patterns</var></samp><a
href='#index-_002de' class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--regexp=<var>patterns</var></samp></span></dt>
-<dd><span id="index-_002d_002dregexp_003dpatterns"></span>
-<span id="index-patterns-option"></span>
-<p>Use <var>patterns</var> as one or more patterns; newlines within
-<var>patterns</var> separate each pattern from the next.
+<dl class="table">
+<dt><samp class="option">-e <var class="var">patterns</var></samp></dt>
+<dt><samp class="option">--regexp=<var class="var">patterns</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002de"></a>
+<a class="index-entry-id" id="index-_002d_002dregexp_003dpatterns"></a>
+<a class="index-entry-id" id="index-patterns-option"></a>
+<p>Use <var class="var">patterns</var> as one or more patterns; newlines within
+<var class="var">patterns</var> separate each pattern from the next.
If this option is used multiple times or is combined with the
-<samp>-f</samp> (<samp>--file</samp>) option, search for all patterns given.
-Typically <var>patterns</var> should be quoted when <code>grep</code> is used
+<samp class="option">-f</samp> (<samp class="option">--file</samp>) option,
search for all patterns given.
+Typically <var class="var">patterns</var> should be quoted when <code
class="command">grep</code> is used
in a shell command.
-(<samp>-e</samp> is specified by POSIX.)
+(<samp class="option">-e</samp> is specified by POSIX.)
</p>
</dd>
-<dt id='index-_002df'><span><samp>-f <var>file</var></samp><a
href='#index-_002df' class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--file=<var>file</var></samp></span></dt>
-<dd><span id="index-_002d_002dfile"></span>
-<span id="index-patterns-from-file"></span>
-<p>Obtain patterns from <var>file</var>, one per line.
+<dt><samp class="option">-f <var class="var">file</var></samp></dt>
+<dt><samp class="option">--file=<var class="var">file</var></samp></dt>
+<dd><a class="index-entry-id" id="index-_002df"></a>
+<a class="index-entry-id" id="index-_002d_002dfile"></a>
+<a class="index-entry-id" id="index-patterns-from-file"></a>
+<p>Obtain patterns from <var class="var">file</var>, one per line.
If this option is used multiple times or is combined with the
-<samp>-e</samp> (<samp>--regexp</samp>) option, search for all patterns given.
+<samp class="option">-e</samp> (<samp class="option">--regexp</samp>) option,
search for all patterns given.
The empty file contains zero patterns, and therefore matches nothing.
-(<samp>-f</samp> is specified by POSIX.)
+(<samp class="option">-f</samp> is specified by POSIX.)
</p>
</dd>
-<dt id='index-_002di'><span><samp>-i</samp><a href='#index-_002di'
class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>-y</samp></span></dt>
-<dt><span><samp>--ignore-case</samp></span></dt>
-<dd><span id="index-_002dy"></span>
-<span id="index-_002d_002dignore_002dcase"></span>
-<span id="index-case-insensitive-search"></span>
+<dt><samp class="option">-i</samp></dt>
+<dt><samp class="option">-y</samp></dt>
+<dt><samp class="option">--ignore-case</samp></dt>
+<dd><a class="index-entry-id" id="index-_002di"></a>
+<a class="index-entry-id" id="index-_002dy"></a>
+<a class="index-entry-id" id="index-_002d_002dignore_002dcase"></a>
+<a class="index-entry-id" id="index-case-insensitive-search"></a>
<p>Ignore case distinctions in patterns and input data,
so that characters that differ only in case
match each other. Although this is straightforward when letters
@@ -104,33 +94,38 @@
it yields “S”. Another example: the lowercase German letter
“Ô
(U+00DF, LATIN SMALL LETTER SHARP S) is normally capitalized as the
two-character string “SS” but it does not match “SS”,
and it might
-not match the uppercase letter “Ẕ (U+1E9E, LATIN CAPITAL LETTER
+not match the uppercase letter
+“Ẕ
+(U+1E9E, LATIN CAPITAL LETTER
SHARP S) even though lowercasing the latter yields the former.
</p>
-<p><samp>-y</samp> is an obsolete synonym that is provided for compatibility.
-(<samp>-i</samp> is specified by POSIX.)
+<p><samp class="option">-y</samp> is an obsolete synonym that is provided for
compatibility.
+(<samp class="option">-i</samp> is specified by POSIX.)
</p>
</dd>
-<dt
id='index-_002d_002dno_002dignore_002dcase'><span><samp>--no-ignore-case</samp><a
href='#index-_002d_002dno_002dignore_002dcase' class='copiable-anchor'>
¶</a></span></dt>
-<dd><p>Do not ignore case distinctions in patterns and input data. This is
+<dt><samp class="option">--no-ignore-case</samp></dt>
+<dd><a class="index-entry-id" id="index-_002d_002dno_002dignore_002dcase"></a>
+<p>Do not ignore case distinctions in patterns and input data. This is
the default. This option is useful for passing to shell scripts that
-already use <samp>-i</samp>, in order to cancel its effects because the
+already use <samp class="option">-i</samp>, in order to cancel its effects
because the
two options override each other.
</p>
</dd>
-<dt id='index-_002dv'><span><samp>-v</samp><a href='#index-_002dv'
class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--invert-match</samp></span></dt>
-<dd><span id="index-_002d_002dinvert_002dmatch"></span>
-<span id="index-invert-matching"></span>
-<span id="index-print-non_002dmatching-lines"></span>
+<dt><samp class="option">-v</samp></dt>
+<dt><samp class="option">--invert-match</samp></dt>
+<dd><a class="index-entry-id" id="index-_002dv"></a>
+<a class="index-entry-id" id="index-_002d_002dinvert_002dmatch"></a>
+<a class="index-entry-id" id="index-invert-matching"></a>
+<a class="index-entry-id" id="index-print-non_002dmatching-lines"></a>
<p>Invert the sense of matching, to select non-matching lines.
-(<samp>-v</samp> is specified by POSIX.)
+(<samp class="option">-v</samp> is specified by POSIX.)
</p>
</dd>
-<dt id='index-_002dw'><span><samp>-w</samp><a href='#index-_002dw'
class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--word-regexp</samp></span></dt>
-<dd><span id="index-_002d_002dword_002dregexp"></span>
-<span id="index-matching-whole-words"></span>
+<dt><samp class="option">-w</samp></dt>
+<dt><samp class="option">--word-regexp</samp></dt>
+<dd><a class="index-entry-id" id="index-_002dw"></a>
+<a class="index-entry-id" id="index-_002d_002dword_002dregexp"></a>
+<a class="index-entry-id" id="index-matching-whole-words"></a>
<p>Select only those lines containing matches that form whole words.
The test is that the matching substring must either
be at the beginning of the line,
@@ -139,31 +134,32 @@
it must be either at the end of the line
or followed by a non-word constituent character.
Word constituent characters are letters, digits, and the underscore.
-This option has no effect if <samp>-x</samp> is also specified.
+This option has no effect if <samp class="option">-x</samp> is also specified.
</p>
-<p>Because the <samp>-w</samp> option can match a substring that does not
+<p>Because the <samp class="option">-w</samp> option can match a substring
that does not
begin and end with word constituents, it differs from surrounding a
-regular expression with ‘<samp>\<</samp>’ and
‘<samp>\></samp>’. For example, although
-‘<samp>grep -w @</samp>’ matches a line containing only
‘<samp>@</samp>’, ‘<samp>grep
-'\<@\>'</samp>’ cannot match any line because
‘<samp>@</samp>’ is not a
-word constituent. See <a href="Special-Backslash-Expressions.html">Special
Backslash Expressions</a>.
+regular expression with ‘<samp class="samp">\<</samp>’ and
‘<samp class="samp">\></samp>’. For example, although
+‘<samp class="samp">grep -w @</samp>’ matches a line containing
only ‘<samp class="samp">@</samp>’, ‘<samp class="samp">grep
+'\<@\>'</samp>’ cannot match any line because ‘<samp
class="samp">@</samp>’ is not a
+word constituent. See <a class="xref"
href="Special-Backslash-Expressions.html">Special Backslash Expressions</a>.
</p>
</dd>
-<dt id='index-_002dx'><span><samp>-x</samp><a href='#index-_002dx'
class='copiable-anchor'> ¶</a></span></dt>
-<dt><span><samp>--line-regexp</samp></span></dt>
-<dd><span id="index-_002d_002dline_002dregexp"></span>
-<span id="index-match-the-whole-line"></span>
+<dt><samp class="option">-x</samp></dt>
+<dt><samp class="option">--line-regexp</samp></dt>
+<dd><a class="index-entry-id" id="index-_002dx"></a>
+<a class="index-entry-id" id="index-_002d_002dline_002dregexp"></a>
+<a class="index-entry-id" id="index-match-the-whole-line"></a>
<p>Select only those matches that exactly match the whole line.
For regular expression patterns, this is like parenthesizing each
-pattern and then surrounding it with ‘<samp>^</samp>’ and
‘<samp>$</samp>’.
-(<samp>-x</samp> is specified by POSIX.)
+pattern and then surrounding it with ‘<samp class="samp">^</samp>’
and ‘<samp class="samp">$</samp>’.
+(<samp class="option">-x</samp> is specified by POSIX.)
</p>
</dd>
</dl>
</div>
<hr>
-<div class="header">
+<div class="nav-panel">
<p>
Next: <a href="General-Output-Control.html">General Output Control</a>,
Previous: <a href="Generic-Program-Information.html">Generic Program
Information</a>, Up: <a href="Command_002dline-Options.html">Command-line
Options</a> [<a href="index.html#SEC_Contents" title="Table of contents"
rel="contents">Contents</a>][<a href="Index.html" title="Index"
rel="index">Index</a>]</p>
</div>
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Jim Meyering <=