TTY
Section: User Commands (1)
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BSD mandoc
NAME
tty
- Return user's terminal name
SYNOPSIS
tty
[-s
]
DESCRIPTION
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
-
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.
Tty
exits 0 if the standard input is a terminal, 1 if the standard input is
not a terminal, and >1 if an error occurs.
SEE ALSO
test(1),
ttyname(3)
STANDARDS
The
tty
function is expected to be
St -p1003.2
compatible.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- SEE ALSO
-
- STANDARDS
-
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