hpux 10.20 - tty (1)

 NAME
      tty, pty - get the name of the terminal

 SYNOPSIS
      tty [-s]

      pty [-s]

 DESCRIPTION
      tty and pty print the path name of the user's terminal.  The -s option
      inhibits printing of the terminal path name and any diagnostics,
      providing a means to test only the exit code.

 RETURN VALUE
      Exit status codes for tty are:

           2       Invalid options were specified,
           1       The standard input is not a terminal or pseudo-terminal,
           0       The standard input is a terminal or pseudo-terminal.

      Exit status codes for pty are:

           2       Invalid options were specified,
           1       The standard input is not a pseudo-terminal,
           0       The standard input is a pseudo-terminal.

 DIAGNOSTICS
      not a tty standard input is not a terminal or pseudo-terminal for tty.

      not a pty standard input is not a pseudo-terminal for pty.

 AUTHOR
      tty was developed by AT&T.  pty was developed by HP.

 STANDARDS CONFORMANCE
      tty: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2