Perl in a Nutshell, 2nd Edition

Global Special Arrays and Hashes

@ARGV

The array containing the command-line arguments intended 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.

@F

The array into which the input lines are split when the -a command-line switch is given.

%INC

The hash containing entries for the filename of each file that has been included via do or require.

%ENV

The hash containing your current environment.

%SIG

The hash used to set signal handlers for various signals.