$@ The Perl syntax error message from the last eval()

$OFS

$) The effective gid of this process. If you are on a machine that supports membership in multiple groups simultaneously, gives a space separated

${^UNICODE} Reflects certain Unicode settings of Perl. See

%- Similar to %+ , this variable allows access to the named capture groups in the last successful

NAME

${^ENCODING} DEPRECATED!!! The object reference to the Encode

NAME

%LAST_PAREN_MATCH

NAME