in reply to (Golf) unique


Same count as broquaint: 
    perl -ne 'print if!$h{$_}++' file1 file2 ... > newfile

[download]
Shorter (16): 
    perl -pe '$_=$,if$,{$_}++' file1 file2 ... > newfile

[download]

--
John.

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Re: Re: (Golf) unique
by Jasper (Chaplain) on Apr 24, 2003 at 17:20 UTC
    perl -pe '$_ x=!$h{$_}++' < infile > outfile

    Jasper
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