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Top Forums Shell Programming and Scripting How can you grep for three fields Post 302219555 by joeyg on Tuesday 29th of July 2008 12:42:11 PM
Old 07-29-2008
Hammer & Screwdriver The logic you are using is "or"

When you have the "|" in your command, that is telling the system to do OR logic.

The typical AND logic for grep is to simply complete two greps. Something like the following:

Code:
cat myfile | grep "text1" | grep "text2" >newfile

 

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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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