/[pcre]/code/trunk/doc/pcregrep.html
ViewVC logotype

Contents of /code/trunk/doc/pcregrep.html

Parent Directory Parent Directory | Revision Log Revision Log


Revision 49 - (show annotations) (download) (as text)
Sat Feb 24 21:39:33 2007 UTC (7 years, 1 month ago) by nigel
File MIME type: text/html
File size: 3477 byte(s)
Load pcre-3.3 into code/trunk.

1 <HTML>
2 <HEAD>
3 <TITLE>pcregrep specification</TITLE>
4 </HEAD>
5 <body bgcolor="#FFFFFF" text="#00005A">
6 <H1>pcregrep specification</H1>
7 This HTML document has been generated automatically from the original man page.
8 If there is any nonsense in it, please consult the man page in case the
9 conversion went wrong.
10 <UL>
11 <LI><A NAME="TOC1" HREF="#SEC1">NAME</A>
12 <LI><A NAME="TOC2" HREF="#SEC2">SYNOPSIS</A>
13 <LI><A NAME="TOC3" HREF="#SEC3">DESCRIPTION</A>
14 <LI><A NAME="TOC4" HREF="#SEC4">OPTIONS</A>
15 <LI><A NAME="TOC5" HREF="#SEC5">SEE ALSO</A>
16 <LI><A NAME="TOC6" HREF="#SEC6">DIAGNOSTICS</A>
17 <LI><A NAME="TOC7" HREF="#SEC7">AUTHOR</A>
18 </UL>
19 <LI><A NAME="SEC1" HREF="#TOC1">NAME</A>
20 <P>
21 pcregrep - a grep with Perl-compatible regular expressions.
22 </P>
23 <LI><A NAME="SEC2" HREF="#TOC1">SYNOPSIS</A>
24 <P>
25 <B>pcregrep [-Vchilnsvx] pattern [file] ...</B>
26 </P>
27 <LI><A NAME="SEC3" HREF="#TOC1">DESCRIPTION</A>
28 <P>
29 <B>pcregrep</B> searches files for character patterns, in the same way as other
30 grep commands do, but it uses the PCRE regular expression library to support
31 patterns that are compatible with the regular expressions of Perl 5. See
32 <B>pcre(3)</B> for a full description of syntax and semantics.
33 </P>
34 <P>
35 If no files are specified, <B>pcregrep</B> reads the standard input. By default,
36 each line that matches the pattern is copied to the standard output, and if
37 there is more than one file, the file name is printed before each line of
38 output. However, there are options that can change how <B>pcregrep</B> behaves.
39 </P>
40 <P>
41 Lines are limited to BUFSIZ characters. BUFSIZ is defined in <B>&#60;stdio.h&#62;</B>.
42 The newline character is removed from the end of each line before it is matched
43 against the pattern.
44 </P>
45 <LI><A NAME="SEC4" HREF="#TOC1">OPTIONS</A>
46 <P>
47 <B>-V</B>
48 Write the version number of the PCRE library being used to the standard error
49 stream.
50 </P>
51 <P>
52 <B>-c</B>
53 Do not print individual lines; instead just print a count of the number of
54 lines that would otherwise have been printed. If several files are given, a
55 count is printed for each of them.
56 </P>
57 <P>
58 <B>-h</B>
59 Suppress printing of filenames when searching multiple files.
60 </P>
61 <P>
62 <B>-i</B>
63 Ignore upper/lower case distinctions during comparisons.
64 </P>
65 <P>
66 <B>-l</B>
67 Instead of printing lines from the files, just print the names of the files
68 containing lines that would have been printed. Each file name is printed
69 once, on a separate line.
70 </P>
71 <P>
72 <B>-n</B>
73 Precede each line by its line number in the file.
74 </P>
75 <P>
76 <B>-s</B>
77 Work silently, that is, display nothing except error messages.
78 The exit status indicates whether any matches were found.
79 </P>
80 <P>
81 <B>-v</B>
82 Invert the sense of the match, so that lines which do <I>not</I> match the
83 pattern are now the ones that are found.
84 </P>
85 <P>
86 <B>-x</B>
87 Force the pattern to be anchored (it must start matching at the beginning of
88 the line) and in addition, require it to match the entire line. This is
89 equivalent to having ^ and $ characters at the start and end of each
90 alternative branch in the regular expression.
91 </P>
92 <LI><A NAME="SEC5" HREF="#TOC1">SEE ALSO</A>
93 <P>
94 <B>pcre(3)</B>, Perl 5 documentation
95 </P>
96 <LI><A NAME="SEC6" HREF="#TOC1">DIAGNOSTICS</A>
97 <P>
98 Exit status is 0 if any matches were found, 1 if no matches were found, and 2
99 for syntax errors or inacessible files (even if matches were found).
100 </P>
101 <LI><A NAME="SEC7" HREF="#TOC1">AUTHOR</A>
102 <P>
103 Philip Hazel &#60;ph10@cam.ac.uk&#62;
104 <BR>
105 Copyright (c) 1997-2000 University of Cambridge.

webmaster@exim.org
ViewVC Help
Powered by ViewVC 1.1.12