Question

Shell Script to loop through a file

Asked by: itsme_asif

Hi Experts,
 Have a dumb question, i have the following script which loops through a file and takes the word in each line of that file and does a grep on a different file, however instead of grep'ing through every single line it only gives the grep output of the last line.

#!/usr/bin/sh
 
 
# Loop through the file
for i in `cat inp.txt`
do
 
 
echo $i
grep $i it_privilege-export.csv|awk -F "," '{print $1}'
done 
 
 
 
exit 0;

                                  
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Asked On
2008-10-28 at 19:42:02ID23856577
Tags

shell

Topic

Bourne Shell (sh)

Participating Experts
1
Points
500
Comments
2

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Answers

 

by: TintinPosted on 2008-10-28 at 19:57:23ID: 22828199

I can't see any logical reason why you'd be getting just a single line from grep if you have multiple matches.

BTW, you can replace your script with



grep -f inp.txt it_privilege-export.csv | awk -F, '{print $1}'
                                              
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by: itsme_asifPosted on 2008-10-28 at 20:23:12ID: 22828299

Hi , I figured its due to the presence of trailing space in my inp file, i removed using a sed command and things are fine now, thanks for the one liner, thats pretty usefull.

20120131-EE-VQP-002

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