CVSROOT: /web/grep Module name: grep Changes by: Karl Berry <karl> 09/05/24 18:43:01
Index: manual/html_node/Exit-Status.html =================================================================== RCS file: manual/html_node/Exit-Status.html diff -N manual/html_node/Exit-Status.html --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ manual/html_node/Exit-Status.html 24 May 2009 18:42:58 -0000 1.1 @@ -0,0 +1,63 @@ +<html lang="en"> +<head> +<title>Exit Status - GNU Grep 2.5.4</title> +<meta http-equiv="Content-Type" content="text/html"> +<meta name="description" content="GNU Grep 2.5.4"> +<meta name="generator" content="makeinfo 4.13"> +<link title="Top" rel="start" href="index.html#Top"> +<link rel="up" href="Invoking.html#Invoking" title="Invoking"> +<link rel="prev" href="Environment-Variables.html#Environment-Variables" title="Environment Variables"> +<link rel="next" href="grep-Programs.html#grep-Programs" title="grep Programs"> +<link href="http://www.gnu.org/software/texinfo/"; rel="generator-home" title="Texinfo Homepage"> +<!-- +This manual is for `grep', a pattern matching engine. + +Copyright (C) 1999, 2000, 2001, 2002, 2005, 2008, 2009 Free +Software Foundation, Inc. + + Permission is granted to copy, distribute and/or modify this + document under the terms of the GNU Free Documentation License, + Version 1.3 or any later version published by the Free Software + Foundation; with no 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''. + --> +<meta http-equiv="Content-Style-Type" content="text/css"> +<style type="text/css"><!-- + pre.display { font-family:inherit } + pre.format { font-family:inherit } + pre.smalldisplay { font-family:inherit; font-size:smaller } + pre.smallformat { font-family:inherit; font-size:smaller } + pre.smallexample { font-size:smaller } + pre.smalllisp { font-size:smaller } + span.sc { font-variant:small-caps } + span.roman { font-family:serif; font-weight:normal; } + span.sansserif { font-family:sans-serif; font-weight:normal; } +--></style> +</head> +<body> +<div class="node"> +<a name="Exit-Status"></a> +<p> +Next: <a rel="next" accesskey="n" href="grep-Programs.html#grep-Programs">grep Programs</a>, +Previous: <a rel="previous" accesskey="p" href="Environment-Variables.html#Environment-Variables">Environment Variables</a>, +Up: <a rel="up" accesskey="u" href="Invoking.html#Invoking">Invoking</a> +<hr> +</div> + +<h3 class="section">2.3 Exit Status</h3> + +<p><a name="index-exit-status-162"></a><a name="index-return-status-163"></a> +Normally, the exit status is 0 if selected lines are found and 1 otherwise. +But the exit status is 2 if an error occurred, unless the <samp><span class="option">-q</span></samp> or +<samp><span class="option">--quiet</span></samp> or <samp><span class="option">--silent</span></samp> option is used and a selected line +is found. +Note, however, that <span class="sc">posix</span> only mandates, +for programs such as <samp><span class="command">grep</span></samp>, <samp><span class="command">cmp</span></samp>, and <samp><span class="command">diff</span></samp>, +that the exit status in case of error be greater than 1; +it is therefore advisable, for the sake of portability, +to use logic that tests for this general condition +instead of strict equality with 2. + + </body></html> +
