TTY(1) | General Commands Manual | TTY(1) |
tty
— return
user's terminal name
tty |
[-s ] |
The tty
utility writes the name of the
terminal attached to standard input to standard output. The name that is
written is the string returned by
ttyname(3). If the standard
input is not a terminal, the message ``not a tty'' is written. The options
are as follows:
-s
-s
option is deprecated
in favor of the “test -t 0
”
command.tty
exits 0 if the standard input is a
terminal, 1 if the standard input is not a terminal, and >1 if an error
occurs.
The tty
utility conforms to
IEEE Std 1003.2-1992 (“POSIX.2”).
A tty
utility appeared in
Version 1 AT&T UNIX.
September 1, 2019 | NetBSD 10.99 |