tied VARIABLE Returns a reference to the object underlying VARIABLE (the same value that was originally returned by the

do BLOCK Not really a function. Returns the value of the last command in the sequence of commands indicated by BLOCK. When modified by the

join EXPR,LIST Joins the separate strings of LIST into a single string with fields separated by the value of EXPR, and returns that new string

endservent These routines are the same as their counterparts in the system C library. In list context, the return values from the various

recv SOCKET,SCALAR,LENGTH,FLAGS Receives a message on a socket. Attempts to receive LENGTH characters of data into variable SCALAR from the

__FILE__ A special token that returns the name of the file in which it occurs.

getc FILEHANDLE getc Returns the next character from the input file attached to FILEHANDLE, or the undefined

sleep EXPR sleep Causes the script to sleep for (integer) EXPR seconds, or forever if no argument is given

times Returns a four-element list giving the user and system times in seconds for this process and any exited children of this process.

sin EXPR sin Returns the sine of EXPR (expressed in radians). If EXPR is omitted, returns sine of