Nothing special, was bored one friday afternoon at work, not much obfuscation in it, but I was having fun playing around with predefined variables, this was the result...

#!/usr/bin/perl -w use strict;$/="__DATA__";@_=<DATA>; chomp(@_);$/="\n";chomp(@_); map{s/\n|\s+//g}@_;$,=" "; print @_; __DATA__ just __DATA__ another __DATA__ perl __DATA__ hacker