%LAST_PAREN_MATCH
$PREMATCH
$a
$CHILD_ERROR
@_ Within a subroutine the array @_ contains the parameters passed to that subroutine. Inside
${^UNICODE} Reflects certain Unicode settings of Perl. See
$POSTMATCH
$BASETIME
perlvar NAME
$! When referenced, $! retrieves the current value of the C
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