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Top Forums Shell Programming and Scripting Stopping grep after one match in a for loop Post 302557229 by Karunamon on Tuesday 20th of September 2011 04:26:07 PM
Old 09-20-2011
Debian Stopping grep after one match in a for loop

(apologies in advance if this one is incredibly obvious to anyone out there, i've been Smilie at this one for some time now)

What I've got is a newline-separated list of filenames to search the contents of around 2,000 XML files for, and return the name of that file. This seems like a job for a "for" loop, so I enter this on the command line:

Code:
for i in `cat ~/targets.txt`; do grep -l -m 1 $i *.xml; done

The problem here is that one of my target filenames might appear in more than one file - I only want grep to return the very first match in the very first file that it finds, and then stop and move on to the next iteration of the loop. (Which is what I was attempting to do with -m 1)

Any ideas here?

Last edited by Karunamon; 09-20-2011 at 05:46 PM..
 

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