closedir DIRHANDLE Closes a directory opened by opendir

sysread FILEHANDLE,SCALAR,LENGTH,OFFSET sysread FILEHANDLE,SCALAR,LENGTH Attempts to read LENGTH bytes of

kill SIGNAL, LIST kill SIGNAL Sends a signal to a list of processes. Returns the number of arguments that

last LABEL last EXPR last The

sort SUBNAME LIST sort BLOCK LIST sort LIST In list context, this sorts

untie VARIABLE Breaks the binding between a variable and a package. (See

pipe READHANDLE,WRITEHANDLE Opens a pair of connected pipes like the corresponding system call. Note that if you set up a loop of piped processes

qr/STRING/ Regexp-like quote. See Regexp Quote-Like Operators in

fork Does a fork(2) system call to create a new process running the same program at the same point. It returns the child pid to the parent

crypt PLAINTEXT,SALT Creates a digest string exactly like the crypt(3) function in the C library (assuming that you actually have a version