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Full Discussion: grep -v while loop
Top Forums UNIX for Dummies Questions & Answers grep -v while loop Post 302104584 by bobo on Thursday 25th of January 2007 10:11:32 PM
Old 01-25-2007
Data Please advise!
What I try to do is to get the different between alist and blist; in this case the result should be:

d
e

My alist is unknown list of data and so is blist. Let's say my alist contains:

e
b
c
a
d

and my blist contains:

c
a
b


Using the code that I have:

#!/usr/bin/ksh
cat blist | while read line
do
grep -V "$line" alist > data
done

What do I have to do to have a data file that contain:

e
d

Please advise! I tried "diff" it is not worked!
 

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