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Top Forums Shell Programming and Scripting Grep: check if a string comes up twice Post 302999172 by rdrtx1 on Wednesday 14th of June 2017 05:43:49 PM
Old 06-14-2017
Code:
while IFS=$(printf "\t") read k v ; do if (($(grep -i "$v" query.txt | wc -l) >= 2)); then echo "$v more than 2"; fi; done < list.txt


Last edited by rdrtx1; 06-14-2017 at 07:07 PM..
 

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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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