lines()


>>-lines--(--+------+--)---------------------------------------><
             '-name-'

Function

Returns 1 if data remains in the stream; otherwise it returns 0. Programs should check for a value of 0 or nonzero.

name: The name for the stream can be a path name or a string that was returned from the stream open or popen commands. If name is omitted, the standard input stream is used.

To set more to nonzero, if stdin has data:

more=lines()