tty-original(1)

get the name of the terminal

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

With the coreutil package (with the extra set), see tty(1) instead.

Also by this name: tty(7), Devices and drivers

NAME

tty - get the name of the terminal

SYNOPSIS

tty [ -l ] [ -s ]

DESCRIPTION

tty prints the path name of the user's terminal.

-l prints the synchronous line number to which the user's terminal is connected, if it is on an active synchronous line.

-s inhibits printing of the terminal path name, allowing one to test just the exit code.

              EXIT CODES
2   if invalid options were specified,
0   if standard input is a terminal,
1   otherwise.

DIAGNOSTICS

``not on an active synchronous line'' if the standard  input
is not a synchronous terminal and -l is specified.
``not a tty'' if the standard input is not a terminal and -s
is not specified.