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01-31-2008
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How to uniq third field in a file
Hi ;
I have a question regarding the uniq command in unix How do I uniq 3rd field in a file ? original file : zoom coord 39 18652 39 18652 zoom coord 39 18653 39 18653 zoom coord 39 18818 39 18818 zoom coord 39 18840 39 18840 zoom coord 41 15096 41 15096 zoom coord 41 15261 41 15261 zoom coord 41 15283 41 15283 zoom coord 53 16385 53 16385 zoom coord 53 16406 53 16406 desire output zoom coord 39 18652 39 18652 zoom coord 41 15096 41 15096 zoom coord 53 16385 53 16385 Thanks  
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01-31-2008
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try this:
Code:
awk '{ if (! third_col[$3]) print $0; third_col[$3]++; }' file
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