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Full Discussion: Regex
Top Forums Shell Programming and Scripting Regex Post 302210278 by risby on Monday 30th of June 2008 02:48:10 PM
Old 06-30-2008
Quote:
Originally Posted by ghostdog74
i hope you are not responding to me. the above is simply
Code:
payslot=`awk -F"=" '/PAYSLOT/{print $NF}'`

i am sure grep is not needed here too, unless i mistaken about the requirement
I was responding to you ghostdog74. The example code you have given above will not store anything in the environment variable because no input is specified to the awk command.

Also, if you leave out the grep you are assuming that the input file does not contain anything other than the single line starting with "PAYSLOT". The OP does not say that that is the case.

Hope this helps
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other 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 the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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