Name

tty − print current terminal name

Syntax

tty [−s]

Description

The tty command prints the pathname of the user’s terminal unless the −s (silent) is given. In either case, the exit value is zero if the standard input is a terminal and one if it is not.

Options

−sSuppresses pathname. 

Diagnostics

Prints ‘not a tty’ if the standard input file is not a terminal.