Grep -v contents of a list file from another file.


 
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# 1  
Old 10-11-2011
Grep -v contents of a list file from another file.

Hello,

I am trying to get output from FILE2 that excludes servers from list FILE1. I've tried a for loop with no success. Any ideas how to go about this?

FILE1 contains:
Code:
server1
server2
server3
server4
server5

FILE2 contains:
Code:
server1:ERROR:user1: error message
server2:ERROR:user2: error message
server3:ERROR:user3: error message
server4:ERROR:user3: error message
server5:ERROR:user1: error message
server6:ERROR:user5: error message
server7:ERROR:user8: error message
server8:ERROR:user9: error message

# 2  
Old 10-11-2011
Code:
grep -v -F -f file1 file2

-F means 'fixed strings', to prevent it considering the contents of file1 as regexes.

Code:
$ grep -v -F -f file1 file2
server6:ERROR:user5: error message
server7:ERROR:user8: error message
server8:ERROR:user9: error message

Beware that any blank lines in file1 will silence everything, since blank lines match everything.
This User Gave Thanks to Corona688 For This Post:
# 3  
Old 10-11-2011
Thank you!
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