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Uniq tag

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Operating Systems OS X (Apple) Uniq tag
# 1  
Old 11-06-2011
Uniq tag
Hello,
I have recently imported all my scripts into OS X. There is one unix command that is problematic in the new environment:

Code:
sort temp7.txt | uniq -u -w4 > temp8.txt

The system doesn't seem to like the -w tag. Is there an alternative command?
Here is the objective:

Data:
Code:
1234 aaa bbb
2345 www eee
3456 rrr ttt
4567 ttt yyy
2345

Output:
Code:
1234 aaa bbb
3456 rrr ttt
4567 ttt yyy

Thanks!
Last edited by radoulov; 11-06-2011 at 08:17 AM.. Reason: Code tags!
# 2  
Old 11-06-2011
Code:
sort -u -k 1.1,1.4 temp7.txt

Try that.
This User Gave Thanks to jim mcnamara For This Post:
palex
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