.Dd January 30, 2015 .Dt TTY 1 .Os .Sh NAME .Nm tty .Nd print terminal name .Sh SYNOPSIS .Nm .Sh DESCRIPTION .Nm prints the name of the terminal open on stdin. .Pp The status code is 0 if stdin is a terminal, and 1 if not. If an error occurred the status code is 2. .Sh SEE ALSO .Xr ttyname 3