Swapping of columns in a file and remove duplicates
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by LucaB
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Published on 2010-04-12T19:38:22Z
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Hi all i have a file like this:
term1 term2
term3 term4
term2 term1
term5 term3
..... .....
what i need to do is to remove duplicates in any order they appear, such as:
term1 term2
and
term2 term1
is a duplicate to me. It is a really long file, so I'm not sure what can be faster. Does anyone has an idea on how to do this? awk perhaps?
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