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       rungetty - a minimal console getty that can run any process


       rungetty  [--noclear]  [--long-hostname]  [-u  username] [-g group] [-w
       path] [-n priority] [--prompt [=string]] [-d n] [--autologin  username]
       tty [--] [command] [arguments]


       rungetty  is  a getty for use on virtual consoles which has the ability
       to run any program, not just  login(1).   Like  mingetty(8),  on  which
       rungetty  is  based, rungetty isn’t suitable for serial use. Both I and
       the author of mingetty(8) recommend mgetty(8) for that. It  is  useful,
       though,  for  keeping  programs such as, say, telnet(1), running at all
       times. When running a program other than login, it is executed  as  the
       user  and  group  nobody,  or  the user specified by username and group
       specified by group.


              Do not clear the screen before prompting for the login name (the
              screen is normally cleared).

              By  default  the  hostname  is only printed until the first dot.
              With this option enabled, the full text  from  gethostname()  is

       -u username
              By  default, rungetty runs programs as nobody. With this option,
              it runs as the user username.

       -g group
              By default, rungetty runs  as  the  group  nobody.  This  option
              allows  you to tell rungetty to run programs as the group group.

       --prompt [=string]
              This option causes rungetty to wait until user input (usually an
              ’Enter’)  before  executing the program. If string is specified,
              it will be displayed. Otherwise, a default prompt will be shown.

       -n n   ´nice´ value of specified program.

       -w path
              Working directory of specified program.

       -d n   Specifying  -d  will make rungetty wait n seconds before running
              the specified program.

       --autologin username
              Log the specified user onto  the  console  (normally  /dev/tty1)
              when the system is first booted without prompting for a username
              or password.

              When the autologin option is supplied, rungetty will check  that
              the  controlling  terminal  is the console (normally /dev/tty1),
              that a reasonable username has been supplied, and that  this  is
              the first autologin request since the system has booted.  If all
              of  these  conditions  have  been  met,   a   request   for   an
              unauthenticated   login   is   passed   to  the  login  program.
              Otherwise, a normal interactive login is performed.

              The login program may deny the request  for  an  unauthenticated
              login.   Typically this will happen when the user is root, has a
              UID of 0, or whenever a normal interactive login would be denied
              due  to  the  access  restrictions  specified  in  the  nologin,
              usertty, or securetty files.

              Only a single autologin request will be issued  after  a  system
              boot.   If the automated login request is denied, or if the user
              logs out, rungetty will revert to performing normal  interactive
              logins for all subsequent login requests.

       --     Tells  rungetty  that there are no more options to parse, useful
              for passing arguments with a - in them to the external  program.


       tty    Name of the tty to run on.

              Runs specified command.  Searches for command in /bin, /usr/bin,
              /usr/ucb, /usr/local/bin if the complete pathname  and  filename
              are not given.

              Command line arguments to pass to command.


       rungetty  recognizes  the  following  escapes  sequences which might be
       embedded in the /etc/issue file:

       \d     insert current day (localtime),

       \l     insert line on which rungetty is running,

       \m     inserts machine architecture (uname -m),

       \n     inserts machine’s network node hostname (uname -n),

       \o     inserts domain name,

       \r     inserts operating system release (uname -r),

       \t     insert current time (localtime),

       \s     inserts operating system name,

       \u resp. \U
              the current number of users which are currently logged  in.   \U
              inserts "n users", where as \u only inserts "n".

       \v     inserts operating system version (uname -v).


       In /etc/inittab, these lines:
       r1:12345:respawn:/sbin/rungetty tty1
       r2:2345:respawn:/sbin/rungetty tty2 telnet
       r3:2345:respawn:/sbin/rungetty tty3 -u support top
       r4:2345:respawn:/sbin/rungetty tty4 -n 20 -w /etc rc5des
       Would   run   a   local  login  on  /dev/tty1,a  telnet(1)  session  to on /dev/tty2,and top(5)on /dev/tty3.  Note that  telnet(1)
       is  run  as user nobody, while top(5) is run as user support, and start
       the program rc5des(5) at the  lowest  priority  level  with  a  current
       directory of /etc.


       /etc/issue, /var/run/utmp, /var/log/autologin.


       Please send all bug reports to


       There are no known bugs.


       mingetty(8), mgetty(8).


       Copyright © 1999 Jakob Kaivo <>.

 Jakob ’sparky’ Kaivo          04 February 1999