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Changes to grep/manual/html_node/Matching-Control.html,v

From: Jim Meyering
Subject: Changes to grep/manual/html_node/Matching-Control.html,v
Date: Thu, 2 Jan 2020 18:18:46 -0500 (EST)

CVSROOT:        /webcvs/grep
Module name:    grep
Changes by:     Jim Meyering <meyering> 20/01/02 18:18:45

Index: html_node/Matching-Control.html
RCS file: /webcvs/grep/grep/manual/html_node/Matching-Control.html,v
retrieving revision 1.29
retrieving revision 1.30
diff -u -b -r1.29 -r1.30
--- html_node/Matching-Control.html     30 Dec 2018 06:24:22 -0000      1.29
+++ html_node/Matching-Control.html     2 Jan 2020 23:18:44 -0000       1.30
@@ -2,7 +2,7 @@
 <!-- This manual is for grep, a pattern matching engine.
-Copyright (C) 1999-2002, 2005, 2008-2018 Free Software Foundation,
+Copyright (C) 1999-2002, 2005, 2008-2020 Free Software Foundation,
 Permission is granted to copy, distribute and/or modify this document
@@ -14,10 +14,10 @@
 <!-- Created by GNU Texinfo 6.5, -->
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>Matching Control (GNU Grep 3.3)</title>
+<title>Matching Control (GNU Grep 3.4)</title>
-<meta name="description" content="Matching Control (GNU Grep 3.3)">
-<meta name="keywords" content="Matching Control (GNU Grep 3.3)">
+<meta name="description" content="Matching Control (GNU Grep 3.4)">
+<meta name="keywords" content="Matching Control (GNU Grep 3.4)">
 <meta name="resource-type" content="document">
 <meta name="distribution" content="global">
 <meta name="Generator" content="makeinfo">
@@ -79,6 +79,8 @@
 <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
+in a shell command.
 (<samp>-e</samp> is specified by POSIX.)
@@ -101,7 +103,8 @@
 <a name="index-_002dy"></a>
 <a name="index-_002d_002dignore_002dcase"></a>
 <a name="index-case-insensitive-search"></a>
-<p>Ignore case distinctions, so that characters that differ only in case
+<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
 differ in case only via lowercase-uppercase pairs, the behavior is
 unspecified in other situations.  For example, uppercase &ldquo;S&rdquo; has an
@@ -118,6 +121,14 @@
 (<samp>-i</samp> is specified by POSIX.)
+<dd><a name="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
+two options override each other.
 <dd><a name="index-_002dv"></a>

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