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