tty(1) — Interactive 2.2



          TTY(1)               INTERACTIVE UNIX System               TTY(1)



          NAME
               tty - get the name of the terminal

          SYNOPSIS
               tty [ -l ] [ -s ]

          DESCRIPTION
               The tty command prints the path name of the user's terminal.

               -l   prints the synchronous line number to which the user's
                    terminal is connected, if it is on an active synchro-
                    nous line.

               -s   inhibits printing of the terminal path name, allowing
                    one to test just the exit code.

                                        EXIT CODES
                          2   if invalid options were specified,
                          0   if standard input is a terminal,
                          1   otherwise.

          DIAGNOSTICS
               ``not on an active synchronous line'' if the standard input
               is not a synchronous terminal and -l is specified.

               ``not a tty'' if the standard input is not a terminal and -s
               is not specified.




























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