awk '!array[$1]++' file.txt

Output entire line once per unique value of the first column

Removes duplicates in the specified field/column while outputting entire lines. An elegant command for processing tab (or otherwise) delimited data.

1
By: bede
2012-08-23 21:04:51
awk

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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