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Re^3: matching the contents of two (2) files

by dragonchild (Archbishop)
on Mar 11, 2005 at 02:15 UTC ( #438498=note: print w/replies, xml ) Need Help??

in reply to Re^2: matching the contents of two (2) files
in thread matching the contents of two (2) files

Let's see ... that's about 70 characters.
#234567890#234567890#234567890#234567890 -p BEGIN{@x{+pop}=()}exists$x{$_}||next
That's 39 characters. You have to run it as so from the command line.
perl -p -e 'BEGIN{@x{+pop}=()}exists$x{$_}||next' FIRST.txt LAST.txt > + MISSING.txt

This is really untested code, but it _should_ work. :-)

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