This is a bit shorter:
% perl -n -e 'sub f{map{push@_,shift;"@_"}@_}push@b,f split;END{$,
+="\n";print sort@b}' filename
The actual code here (between the single quotes) is 72 chars.
Though that's cheating slightly since you need the -n to make it work.
Should have the same output. I'm sure there's a faster/shorter
way to do that f sub. Someone'll come up with it.
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