A piggy bank of commands, fixes, succinct reviews, some mini articles and technical opinions from a (mostly) Perl developer.

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Quick reference

What a solitary underscore in Perl means

It represents the previous 'stat' structure, saving a system call.
See: http://perldoc.perl.org/5.8.8/functions/-X.html
and http://perldoc.perl.org/5.8.8/functions/stat.html