Need to find only unique values for a given tag across the files


 
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# 8  
Old 09-01-2007
Would it be possible if you give me, what these options does:

grep "<Tag1>" test*|sort -t: -k2 -u

Why ":" after t, why 2 after k?

This is what I understood from my research:
-t --> delimiter
-k --> ?
-u -->unique
# 9  
Old 09-03-2007
Quote:
Originally Posted by sudheshnaiyer
Would it be possible if you give me, what these options does:

grep "<Tag1>" test*|sort -t: -k2 -u

Why ":" after t, why 2 after k?

This is what I understood from my research:
-t --> delimiter
-k --> ?
-u -->unique
-k = key position, based on which sort works
 
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