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Top Forums Shell Programming and Scripting Grep multiple strings in multiple files Post 302726967 by xshang on Monday 5th of November 2012 12:22:14 PM
Old 11-05-2012
Quote:
Originally Posted by bipinajith
I don't recommend this approach, but I hope it works:-
Code:
grep -f search_file * | awk -F":" ' { print $NF } ' | sort | uniq -c | awk ' { if($1>=50) print; } '

Note: search_file is the file with multiple strings that you mentioned.
Thanks!

Yes, this approach might not be efficiency. there are millions of strings in my file and hundreds of files to be searched. Do you have any other smart suggestions?

Thank you very much.
 

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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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