TTY(1)                  NetBSD General Commands Manual                  TTY(1)

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 utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

NetBSD 8.0                       June 6, 1993                       NetBSD 8.0

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