getty(1M)                        UNIX System V                        getty(1M)


NAME
      getty - set terminal type, modes, speed, and line discipline

SYNOPSIS
      getty [ -h ] [ -t timeout ] line [ speed [ type [ linedisc ] ] ]
      getty -c file

DESCRIPTION
      getty is included for compatibility with previous releases for the few
      applications that still call getty directly.  getty can only be executed
      by the superuser, that is, by a process with the user ID root.  Initially
      getty prints the login prompt, waits for the user's login name, and then
      invokes the login command.  getty attempts to adapt the system to the
      terminal speed by using the options and arguments specified on the
      command line.

      line  The name of a TTY line in /dev to which getty is to attach itself.
            getty uses this string as the name of a file in the /dev directory
            to open for reading and writing.

      -h    If the -h flag is not set, a hangup will be forced by setting the
            speed to zero before setting the speed to the default or specified
            speed.

      -t timeout
            specifies that getty should exit if the open on the line succeeds
            and no one types anything in timeout seconds.

      speed The speed argument is a label to a speed and TTY definition in the
            file /etc/ttydefs.  This definition tells getty at what speed to
            run initially, what the initial TTY settings are, and what speed to
            try next, should the user indicate, by pressing the BREAK key, that
            the speed is inappropriate.  The default speed is 1200 baud.

      type and linedisc
            These options are obsolete and will be ignored.

      -c file
            The -c option is no longer supported.  Instead use sttydefs -l to
            list the contents of the /etc/ttydefs file and perform a validity
            check on the file.

      When given no optional arguments, getty specifies the following:  The
      speed of the interface is set to 1200 baud, either parity is allowed,
      new-line characters are converted to carriage return-line feed, and tab
      expansion is performed on the standard output.  getty types the login
      prompt before reading the user's name a character at a time.  If a null
      character (or framing error) is received, it is assumed to be the result
      of the user pressing the BREAK key.  This will cause getty to attempt the
      next speed in the series.  The series that getty tries is determined by
      what it finds in /etc/ttydefs.



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getty(1M)                        UNIX System V                        getty(1M)


NOTES
      Developers are encouraged to use ttymon(1M) as support for getty may be
      dropped in the future.

FILES
      /etc/ttydefs

SEE ALSO
      ct(1C), sttydefs(1M), tty(7), ttymon(1M).
      login(1) in the User's Reference Manual.
      ioctl(2) in the Programmer's Reference Manual.











































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