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

Conclusion

In this page (written and validated by A. Gawali) 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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