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Changes to grep/manual/html_node/Exit-Status.html,v
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From: |
Jim Meyering |
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Subject: |
Changes to grep/manual/html_node/Exit-Status.html,v |
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Date: |
Sun, 23 Nov 2014 22:23:40 +0000 |
CVSROOT: /webcvs/grep
Module name: grep
Changes by: Jim Meyering <meyering> 14/11/23 22:23:33
Index: html_node/Exit-Status.html
===================================================================
RCS file: /webcvs/grep/grep/manual/html_node/Exit-Status.html,v
retrieving revision 1.19
retrieving revision 1.20
diff -u -b -r1.19 -r1.20
--- html_node/Exit-Status.html 3 Jun 2014 14:47:03 -0000 1.19
+++ html_node/Exit-Status.html 23 Nov 2014 22:23:31 -0000 1.20
@@ -1,8 +1,8 @@
<html lang="en">
<head>
-<title>Exit Status - GNU Grep 2.20</title>
+<title>Exit Status - GNU Grep 2.21</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-<meta name="description" content="GNU Grep 2.20">
+<meta name="description" content="GNU Grep 2.21">
<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">
@@ -47,17 +47,13 @@
<h3 class="section">2.3 Exit Status</h3>
-<p><a name="index-exit-status-171"></a><a name="index-return-status-172"></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 POSIX 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.
+<p><a name="index-exit-status-176"></a><a name="index-return-status-177"></a>
+Normally the exit status is 0 if a line is selected, 1 if no lines
+were selected, and 2 if an error occurred. However, if 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 line is selected, the exit status is 0 even if an error
+occurred. Other <samp><span class="command">grep</span></samp>
implementations may exit with status
+greater than 2 on error.
</body></html>
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