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NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

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  • $ perl -v
    This is perl, v5.8.4 built for i686-linux

    Copyright 1987-2004, Larry Wall

    Perl may be copied only under the terms of either the Artistic License or the
    GNU General Public License, which may be found in the Perl 5 source kit.

    Complete documentation for Perl, including FAQ lists, should be found on
    this system using `man perl' or `perldoc perl'.  If you have access to the
    Internet, point your browser at http://www.perl.com/, the Perl Home Page.

    $ perl -MScalar::Util -le 'print Scalar::Util::looks_like_number(undef)'
    1