TTYNAM(3F)                                                          TTYNAM(3F)



NAME
       ttynam, isatty - find name of a terminal port

SYNOPSIS
       character*(*) function ttynam (lunit)

       logical function isatty (lunit)

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

       _I_s_a_t_t_y returns .true.  if _l_u_n_i_t is associated with a  terminal  device,
       .false.  otherwise.

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

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



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