$PREMATCH

$SUBSCRIPT_SEPARATOR

$OS_ERROR

$POSTMATCH

$EXCEPTIONS_BEING_CAUGHT

$^T The time at which the program began running, in seconds since the epoch (beginning of 1970). The values returned by the -M, -A

%INC The hash %INC contains entries for each filename included via the

$_ The default input and pattern-searching space. The following pairs are equivalent:

perlvar NAME

@LAST_MATCH_END