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Top Forums Shell Programming and Scripting what does echo $$, $? $# mean Post 302219741 by era on Wednesday 30th of July 2008 01:39:24 AM
Old 07-30-2008
Note that yesmani's response is the documentation for these variables in Perl. I was assuming you meant the shell. (In particular, I don't think $# alone makes any sense in modern Perl. Looks like the table above was for Perl 4, maybe.)
 

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Perl::Critic::Policy::Variables::ProtectPrivateVars(3pm)User Contributed Perl DocumentatioPerl::Critic::Policy::Variables::ProtectPrivateVars(3pm)

NAME
Perl::Critic::Policy::Variables::ProtectPrivateVars - Prevent access to private vars in other packages. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
By convention Perl authors (like authors in many other languages) indicate private methods and variables by inserting a leading underscore before the identifier. This policy catches attempts to access private variables from outside the package itself. CONFIGURATION
This Policy is not configurable except for the standard options. HISTORY
This policy is inspired by a similar test in B::Lint SEE ALSO
Perl::Critic::Policy::Subroutines::ProtectPrivateSubs AUTHOR
Chris Dolan <cdolan@cpan.org> COPYRIGHT
Copyright (c) 2006-2011 Chris Dolan. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.14.2 2012-06-07 Perl::Critic::Policy::Variables::ProtectPrivateVars(3pm)
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