ne These operators are documented in perlop.

shmctl ID,CMD,ARG Calls the System V IPC function shmctl. You'll probably have to say

caller EXPR caller Returns the context of the current pure perl subroutine call. In scalar context, returns

__LINE__ A special token that compiles to the current line number.

flock FILEHANDLE,OPERATION Calls flock(2), or an emulation of it, on FILEHANDLE. Returns true for success, false on failure. Produces a fatal

lcfirst EXPR lcfirst Returns the value of EXPR with the first character lowercased. This is the internal

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

__DATA__ These keywords are documented in Special

socketpair SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL Creates an unnamed pair of sockets in the specified domain, of the specified type. DOMAIN

grep BLOCK LIST grep EXPR,LIST This is similar in spirit to, but not the same as, grep(1) and its relatives