And just to complete ikegami's somewhat terse response, you don't need to be online to look this up, it's bundled with your copy of Perl. From the command line, you can run the command

  perldoc perlvar

[download]

and get the documentation that corresponds to your installed version. On Unix-like systems, man perlvar usually works as well.

• another intruder with the mooring in the heart of the Perl

In reply to Re: Meaning of $ special variables by grinder
in thread Meaning of $ special variables by SR

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