pcregrep man page on DigitalUNIX

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PCREGREP(1)							   PCREGREP(1)

       pcregrep - a grep with Perl-compatible regular expressions.

       pcregrep [-Vcfhilnrsvx] pattern [file] ...

       pcregrep	 searches  files  for  character  patterns, in the same way as
       other grep commands do, but it uses the PCRE regular expression library
       to support patterns that are compatible with the regular expressions of
       Perl 5. See pcre(3) for a full description of syntax and semantics.

       If no files are	specified,  pcregrep  reads  the  standard  input.  By
       default,	 each  line that matches the pattern is copied to the standard
       output, and if there is more than one file, the file  name  is  printed
       before  each line of output. However, there are options that can change
       how pcregrep behaves.

       Lines are limited to BUFSIZ characters. BUFSIZ is defined in <stdio.h>.
       The newline character is removed from the end of each line before it is
       matched against the pattern.

       -V	 Write the version number of the PCRE library  being  used  to
		 the standard error stream.

       -c	 Do  not print individual lines; instead just print a count of
		 the number of lines that would otherwise have	been  printed.
		 If  several  files  are given, a count is printed for each of

		 Read patterns from the file, one per line, and match all pat‐
		 terns	against each line. There is a maximum of 100 patterns.
		 Trailing white space is removed, and blank lines are ignored.
		 An  empty  file  contains  no	patterns and therefore matches

       -h	 Suppress printing of filenames when searching multiple files.

       -i	 Ignore upper/lower case distinctions during comparisons.

       -l	 Instead of printing lines from	 the  files,  just  print  the
		 names	of  the	 files	containing  lines that would have been
		 printed. Each file name is printed once, on a separate line.

       -n	 Precede each line by its line number in the file.

       -r	 If any file is a directory, recursively  scan	the  files  it
		 contains. Without -r a directory is scanned as a normal file.

       -s	 Work  silently,  that	is,  display nothing except error mes‐
		 sages.	 The exit status indicates whether  any	 matches  were

       -v	 Invert	 the  sense  of	 the match, so that lines which do not
		 match the pattern are now the ones that are found.

       -x	 Force the pattern to be anchored (it must start  matching  at
		 the  beginning	 of  the  line) and in addition, require it to
		 match the entire line. This is equivalent to having ^	and  $
		 characters at the start and end of each alternative branch in
		 the regular expression.

       pcre(3), Perl 5 documentation

       Exit status is 0 if any matches were found, 1 if no matches were found,
       and  2  for  syntax  errors  or inacessible files (even if matches were

       Philip Hazel <ph10@cam.ac.uk>

       Last updated: 15 August 2001
       Copyright (c) 1997-2001 University of Cambridge.


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