x xor These operators are documented in perlop.

ne These operators are documented in perlop.

setpgrp PID,PGRP Sets the current process group for the specified PID, 0 for the current

seekdir DIRHANDLE,POS Sets the current position for the

sub NAME BLOCK sub NAME (PROTO) BLOCK sub NAME : ATTRS BLOCK sub NAME

alarm SECONDS alarm Arranges to have a SIGALRM delivered to this process after the specified number of wallclock

ARGVOUT The special filehandle that points to the currently open output file when doing edit-in-place processing with -i. Useful when

getgrent

No-ops Perl doesn't officially have a no-op operator, but the bare constants 0 and

@- $-[0] is the offset of the start of the last successful match