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.The tty
utility 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 is expected to be
IEEE Std 1003.2 (“POSIX.2”)
compatible.
A tty
command appeared in
Version 1 AT&T UNIX.
June 6, 1993 | macOS 14.6 |