in reply to Re: Find duplicate lines from the file and write it into new file.
in thread Find duplicate lines from the file and write it into new file.

if sorting is an option, and we are on unix/linux here, i would try out sort -u file

update: yep, i misread the question. forget it =)

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Re^3: Find duplicate lines from the file and write it into new file.
by monkey_boy (Priest) on Jan 04, 2007 at 13:34 UTC
    but then you would lose the duplicates, i think the OP wanted to find the duplicates, perhaps somthing along the lines of sort | uniq -c , then they could read the file and look at the counts



    This is not a Signature...
      uniq can give you the dups directly:
      sort foo.txt | uniq -d