TTYNAM(3F) — System Interface Manual — Fortran Interfaces
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 associated 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’.
Sun System Release 1.0 — 13 June 1983