TTYNAM(3F)                                                          TTYNAM(3F)


NAME
       ttynam, isatty - find name of a terminal port

SYNOPSIS
       character*(*) function ttynam (lunit)

       logical function isatty (lunit)

DESCRIPTION
       Ttynam  returns a blank padded path name of the terminal device associ‐
       ated with logical unit lunit.

       Isatty returns .true.  if lunit is associated with a  terminal  device,
       .false.  otherwise.

FILES
       /dev/∗
       /usr/lib/libU77.a

DIAGNOSTICS
       Ttynam  returns an empty string (all blanks) if lunit is not associated
       with a terminal device in directory ‘/dev’.


4.2 Berkeley Distribution        May 15, 1985                       TTYNAM(3F)
 
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