I was trying to identify lines who has a word of the following pattern "xyyx" (where x, and ys are different characters).
I was trying the following grep -
This pattern do catches the wanted pattern, but it also catches "GGGG" or "CCCC" patterns. I was trying to check this on different regex infrastructure and it worked fine (catched only the wanted pattern).
Does anyone has an idea how to change the regex so it catches only the wanted pattern?
To summarize the problem - you can check -
Thanks a lot in advance!
Eyal.
Last edited by Franklin52; 03-07-2011 at 08:16 AM..
Reason: Please use code tags, thank you
Hi there,
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Hi folks
how can this be explained?
Cheers
Spacerat
----
tom@jumpstart:~$ cat /etc/resolv.conf
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Discussion started by: enux
3 Replies
LEARN ABOUT CENTOS
bzgrep
BZGREP(1) General Commands Manual BZGREP(1)NAME
bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression
SYNOPSIS
bzgrep [ grep_options ] [ -e ] pattern filename...
bzegrep [ egrep_options ] [ -e ] pattern filename...
bzfgrep [ fgrep_options ] [ -e ] pattern filename...
DESCRIPTION
Bzgrep is used to invoke the grep on bzip2-compressed files. All options specified are passed directly to grep. If no file is specified,
then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to
grep.
If bzgrep is invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, bzgrep
uses it as the grep program to be invoked. For example:
for sh: GREP=fgrep bzgrep string files
for csh: (setenv GREP fgrep; bzgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.
SEE ALSO grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1)BZGREP(1)