eval EXPR eval BLOCK eval In the first form, often referred to as a "string

not These operators are documented in perlop.

length EXPR length Returns the length in characters of the value of EXPR. If EXPR is omitted, returns

given These flow-control keywords related to the experimental switch feature are documented in

gethostbyname NAME

semop KEY,OPSTRING Calls the System V IPC function semop(2) for semaphore operations such as signalling and waiting. OPSTRING must be a packed

glob EXPR glob In list context, returns a (possibly empty) list of filename expansions on the value of EXPR

mkdir FILENAME,MASK mkdir FILENAME mkdir Creates the directory specified

chop VARIABLE chop( LIST ) chop Chops off the last character of a string

BEGIN These compile phase keywords are documented in