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Top Forums Shell Programming and Scripting Bash Scipting (New); Run multiple greps > multiple files Post 302747573 by LDHB2012 on Friday 21st of December 2012 04:12:39 PM
Old 12-21-2012
Bash Scipting (New); Run multiple greps > multiple files

Hi everyone,

I'm new to the forums, as you can probably tell... I'm also pretty new to scripting and writing any type of code.

I needed to know exactly how I can grep for multiple strings, in files located in one directory, but I need each string to output to a separate file.

So I'd imagine I'd make a separate text file with each string that I want to grep. ex:
Code:
food1
food2
food3

.

Then i would use a loop function to grep all files in directory /Desktop/Blah/*, and output to a file named "the string i grepped for".

I would greatly appreciate guidance on this, as loops confuse the hell outa me and i'm not sure what "x" means in the following:

Code:
for x in 'cat /Desktop/Blah/*'; grep 'point to strings file' ..........

Where would $x go? Any guidance is helpful. Thanks everyone....


-David

Last edited by Scrutinizer; 12-26-2012 at 09:52 AM.. Reason: code tags
 

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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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