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Shell Script to loop through a file

Posted on 2008-10-28
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Last Modified: 2013-12-26
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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Question by:itsme_asif
2 Comments
 
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Accepted Solution

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Tintin earned 500 total points
ID: 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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Author Comment

by:itsme_asif
ID: 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.
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