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Re: a one-liner for this trivial problem?

by NetWallah (Canon)
on Apr 16, 2013 at 23:35 UTC ( #1029027=note: print w/replies, xml ) Need Help??

in reply to a one-liner for this trivial problem?

How about this:
perl -ne "$small||=$ARGV; $small eq $ARGV? $h{$_}++: $h{$_}?0:print" s +mall.txt large.txt
This takes advantage of the fact that $ARGV contains the file name.

Use single-quotes if you run in *nix.

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Re^2: a one-liner for this trivial problem?
by space_monk (Chaplain) on Apr 17, 2013 at 04:22 UTC

    Good idea, but removing the hard coding of file names perhaps gives....

    perl -ne " $ARGV eq $ARGV[0] ? $h{$_}++ : $h{$_} ? 0 : print; " small.txt large.txt
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