tty(1)

tty -- get the name of the terminal

Synopsis

tty [-l] [-s]

Description

tty prints the pathname of the user's terminal. It accepts the following options:

-l: Print the synchronous line number to which the user's terminal is connected, if it is on an active synchronous line.
-s: Inhibit printing of the terminal path name, allowing one to test just the exit code.

Files

/usr/lib/locale/locale/LC_MESSAGES/uxue.abi: language-specific message file (see LANG on environ(5)).

Exit codes

0: standard input is a terminal
1: standard input is not a terminal
2: invalid option

Diagnostics

not on an active synchronous line: The standard input is not a synchronous terminal and -l is specified.
not a tty: The standard input is not a terminal and -s is not specified.

References

ttyname(3C)

Notices

Application authors should avoid use of the -s option, since it may not be supported in future releases. Use test -t 0 in its place.

© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004