TTY(M)                                     UNIX System V



     Name
          tty - special 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  when  it  is
          tiresome to find out what terminal is currently in use.

          The general terminal interface is described in termio(M).


     Files
          /dev/tty
          /dev/tty*


     See Also
          termio(M)


     Standards Conformance
          tty is conformant with:

          AT&T SVID Issue 2, Select Code 307-127;
          and The X/Open Portability Guide II of January 1987.


     (printed 8/23/89)                                  TTY(M)