TTY(1) OpenBSD Reference Manual TTY(1)
tty - return user's terminal name
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
The options are as follows:
-s Don't write the terminal name; only the exit status is affected
when this option is specified. The -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, or >1 if an error occurred.
stty(1), test(1), ttyname(3), tty(4)
The tty utility is compliant with the IEEE Std 1003.1-2008 (``POSIX.1'')
The flag [-s] is an extension to that specification.
A tty command appeared in Version 1 AT&T UNIX.
OpenBSD 5.1 September 3, 2010 OpenBSD 5.1
[Unix Hosting |
[Engineering & Automation |
Software Development |