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Perl Special Variables (defaults)

Special Variables (defaults)

Some variables have a predefined and special meaning to Perl. A few of the most commonly used ones are listed below

$_ The default input and pattern-searching space
$0 Program name
$$ Current process ID
$! Current value of errno
@ARGV Array containing command-line arguments for the script
@INC The array containing the list of places to look for Perl scripts to be evaluated by the do, require, or use constructs
%ENV The hash containing the current environment
%SIG The hash used to set signal handlers for various signals


In this page (written and validated by ) you learned about Perl Special Variables (defaults) . What's Next? If you are interested in completing Perl tutorial, your next topic will be learning about: Perl Scalars.

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