SHUTDOWN.8
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- SHUTDOWN(8) Minix Programmer's Manual SHUTDOWN(8)
- NAME
- shutdown - graciously close the system down
- SYNOPSIS
- shutdown [-hrRmk] [-x code] [time-specification [message]]
- DESCRIPTION
- Shutdown is a program which allows a system operator to close down the
- system in an nice way. Shutdown informs the users why and when the system
- is going down. This warning is issued 10 minutes before shutdown time
- and every minute in the last 5 minutes. At this time (5 minutes),
- shutdown creates a file /etc/nologin to prevent new users from logging
- in.
- Shutdown keeps a logfile of shutdowns. Every shutdown is registered in
- /usr/adm/wtmp, if this file exists. After these actions, a call is done
- to reboot(2) which actually brings the system down.
- Time-specification may be something like 15:00, 15.00, +15, or now for a
- shutdown at 3pm (twice), 15 minutes from now, or immediately.
- The message may be used to describe why the system is going down, it may
- also be typed on standard input with the -m option.
- OPTIONS
- -h This flag prevents the system from rebooting after the shutdown.
- The system can now be powered off. This is the default.
- -r This flag indicates that the system should reboot after shutting
- down.
- -R Reboot the system by resetting it. Normally the kernel will try to
- return to the Boot Monitor. With -R the system will receive a
- hardware reset.
- -x code
- Halt the system and let the Monitor execute the given code as if
- typed at the monitor prompt. You can for instance use -x 'boot hd0'
- as a very fast way to reboot "from the top."
- -m Allows the operator to type a shutdown message on standard input,
- that will be added to the messages displayed on all terminals.
- -k This option gives the possibility of terminating an already started
- shutdown. This is only possible if shutdown time has not yet
- arrived.
- 1
- SHUTDOWN(8) Minix Programmer's Manual SHUTDOWN(8)
- -C Check if the system crashed. This option is not used at shutdown
- time, but at reboot time. It tells if the file systems should be
- checked by testing if the last entry in the wtmp file is a shutdown
- entry. (A crude replacement for a file system clean flag.)
- FILES
- /usr/adm/wtmp, /etc/nologin, /usr/adm/authlog
- SEE ALSO
- reboot(2), wall(1), halt(8), boot(8).
- AUTHOR
- Edvard Tuinder (v892231@si.hhs.NL)
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