TTY(7)                                                                  TTY(7)


NAME
     tty - controlling terminal interface

DESCRIPTION
     The file /dev/tty is, in each process, a synonym for the control terminal
     associated with the process group of that process, if any.  It is useful
     for programs or shell sequences that wish to be sure of writing messages
     on the terminal no matter how output has been redirected.  It can also be
     used for programs that demand the name of a file for output, when typed
     output is desired and it is tiresome to find out what terminal is
     currently in use.

FILES
     /dev/tty
     /dev/tty*

SEE ALSO
     console(7)


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