$DEBUGGING

$INPUT_RECORD_SEPARATOR

$INPLACE_EDIT

$" When an array or an array slice is interpolated into a double-quoted string or a similar context such as /

$^O The name of the operating system under which this copy of Perl was built, as determined during the configuration process. For examples

${^PREMATCH} This is similar to $` ($PREMATCH) except that it does not incur the performance

%ERRNO

@+ This array holds the offsets of the ends of the last successful submatches in the currently active dynamic scope.

$OSNAME

$LIST_SEPARATOR