$GID

${^RE_DEBUG_FLAGS} The current value of the regex debugging flags. Set to 0 for no debug output even when the re

%LAST_MATCH_START

ARGV The special filehandle that iterates over command-line filenames in @ARGV . Usually

$COMPILING

$PERL_VERSION

$ERRNO

$SYSTEM_FD_MAX

@INC The array @INC contains the list of places that the

$^X The name used to execute the current copy of Perl, from C's argv[