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Full Discussion: plz correct this
Top Forums Shell Programming and Scripting plz correct this Post 302115649 by wannalearn on Thursday 26th of April 2007 07:28:31 AM
Old 04-26-2007
If i do this
cut -d"/" -f5 | egrep -e "p2"
it will be grepping on the output because we are using the pipe....

grep pattern a.log|grep -e "p1" |cut -d":" -f1,2,3,4,8,9,10|cut -d"/" -f5 -e "p2" |cut -d":" -f1,2,3,4,6|cut -d"/" -f5 >> file

So i used the grep -e


I want to search for pattern one do the cutting part then search for pattern two and do the cutting part for that in the same log instead of grepping two times

grep pattern a.log|grep "p1" |cut -d":" -f1,2,3,4,8,9,10|cut -d"/" -f5
grep pattern a.log|grep "p2" |cut -d":" -f1,2,3,4,6|cut -d"/" -f5

i have to execute the above command by using grep only once :-)
 

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LEARN ABOUT LINUX

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)
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