Perl Pocket Reference, 5th Edition

Special Arrays

The alternative names are provided by the standard module English.

@_

Alternative: @ARG.

Parameter array for subroutines. Also used by split if not in list context.

@-

Alternative: @LAST_MATCH_START.

After a successful pattern match, contains the offsets of the beginnings of the successful submatches. $-[0] is the offset of the entire match.

@+

Alternative: @LAST_MATCH_END.

Like @-, but the offsets point to the ends of the submatches. $+[0] is the offset of the end of the entire match.

@ARGV

Contains the command-line arguments for the script (not including the command name, which is in $0).

@EXPORT

Names the methods and other symbols a package exports by default. Used by the Exporter module.

@EXPORT_OK

Names the methods and other symbols a package can export upon request. Used by the Exporter module.

@F

When command-line option -a is used, contains the split of the input lines.

@INC

Contains the list of places to look for Perl scripts to be evaluated by the do filename, use and require commands.

Do not modify @INC directly, but use the lib pragma or -I command-line option instead.

@ISA

List of base classes of a package.

perlvar.