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

gt These operators are documented in perlop.

wait Behaves like wait(2) on your system: it waits for a child process to terminate and returns the pid of the deceased process, or

y/// The transliteration operator. Same as tr///

my VARLIST my TYPE VARLIST my VARLIST : ATTRS my TYPE VARLIST : ATTRS

qw/STRING/

reverse LIST In list context, returns a list value consisting of the elements of LIST in the opposite order. In scalar context, concatenates

listen SOCKET,QUEUESIZE Does the same thing that the listen(2) system call does. Returns true if it succeeded, false otherwise. See the example

bless REF,CLASSNAME bless REF This function tells the thingy referenced by REF that it is now an object

setprotoent STAYOPEN