    TTY(I)                       3/15/72                       TTY(I)

    NAME
         tty - get typewriter name

    SYNOPSIS
         tty

    DESCRIPTION
         Tty  gives  the  name  of  the user's typewriter in the form
         `ttyn' for n a digit or letter.  The  actual  path  name  is
         then `/dev/ttyn'.

    DIAGNOSTICS
         `not  a tty' if the standard input file is not a typewriter.

    BUGS

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