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.TH TTY 1 "GNU Shell Utilities" "FSF" \" -*- nroff -*-
.SH NAME
tty \- print the file name of the terminal connected to standard input
.SH SYNOPSIS
.B tty
[\-s] [\-\-silent] [\-\-quiet] [\-\-help] [\-\-version]
.SH DESCRIPTION
This documentation is no longer being maintained and may be inaccurate
or incomplete. The Texinfo documentation is now the authoritative source.
.PP
This manual page
documents the GNU version of
.BR tty .
.B tty
prints the file name of the tty connected to its standard input. It
prints `not a tty' if the standard input is not a tty. Its exit
status is:
.nf
0 if the standard input is a tty
1 if the standard input is not a tty
2 if given incorrect arguments
3 if a write error occurs
.fi
.SS OPTIONS
.TP
.I "\-\-help"
Print a usage message on standard output and exit successfully.
.TP
.I "\-s, \-\-silent, \-\-quiet"
Print nothing; only return an exit status.
.TP
.I "\-\-version"
Print version information on standard output then exit successfully.
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