Thanks Perderabo, I quite understand.
With my little knowledge, I thought that the warning sent before the kill signal was the message displayed by shutdown. That's why I was confused to see that this warning message was displayed exactly the same in both cases.
About my other question, do you have any clue?
I'd like to be have a command to reboot my server giving the other users 5 minuts to close their work in progress. How can I achieve something like:
Hai
Could somebody tell me the solution to my problem.
the question is as follows
there is one unix server and 100 dummy terminals connected to my server, i want to shutdown client system if some of the
client forgetten to power down their system.
plez provide me the code for that. (2 Replies)
Hello all
I'm trying to automate the startup/shutdown of my database whenever the OS is bounced ...
OS : Linux (Kernel : 2.4.20.-6)
Oracle : 9.2.0.5
The contents of /etc/init.d/dbora file is listed below
case "$1" in
'start')
su - $ORACLE_OWNER -c "$ORACLE_HOME/bin/dbstart"... (1 Reply)
Hello all -
On some of the systems we use - AlphaServer es40 Tru64 digital unix - you can login with the username: shutdown - with no password - and it shuts down the system gracefully. I've tried to trace what's going on in the system, but to no avail.
I've been searching the web, but... (1 Reply)
Hi Guys,
I want to execute few of my bash script, so that whenever someone calls shutdown now -r command, I want my script to execute first before shutting down.
Any help please?????
I've just started playing with the unix system, so far its been brilliant.... (10 Replies)
Firstly uname -a = UnixWare companyname 5 7.1.4 i386 x86at SCO UNIX_SVR5
Server is an HP Proliant ML350 G4 Tower
Right, now to the problem.
We frequently have power outtages and lightning strikes here due to our location in a VERY rural part of the UK.
As such, I need to be able to remotely... (6 Replies)
Hi,
I am on Alpha Server with HP Tru64 system.
I wish to setup shutdown to automatically and cleanly shutdown informix during the shutting down of the system.
Ie. I was trying to use rc0.d to do this but failed.
Has anyone tried doing this before? I already have the script and linked it
to... (0 Replies)
I have Oracle 9i R2 on AIX 5.2. My Database is running in shared server mode (MTS).
Sometimes when I shutdown the database it shutsdown cleanly in 4-5 mints and sometimes it takes good 15-20 minutes and then I get some ora-600 errors and only way to shutdown is by opening another session and... (7 Replies)
Hi,
I'm testing out this plink script - which will be executed to shutdown multiple LPARs.
This consists from:
plink -i /path/ssh/cert/ root@host shutdown -F
plink -i /path/ssh/cert/ root@host2 shutdown -F
The commands gets executed, however it stops on one host, and does not move... (6 Replies)
Discussion started by: ollie01
6 Replies
LEARN ABOUT MOJAVE
shutdown
SHUTDOWN(8) BSD System Manager's Manual SHUTDOWN(8)NAME
shutdown -- close down the system at a given time
SYNOPSIS
shutdown [-] [-h [-u] | -r | -s | -k] [-o [-n]] time [warning-message ...]
DESCRIPTION
The shutdown utility provides an automated shutdown procedure for super-users to nicely notify users when the system is shutting down, saving
them from system administrators, hackers, and gurus, who would otherwise not bother with such niceties.
The following options are available:
-h The system is halted at the specified time.
-k Kick everybody off. The -k option does not actually halt the system, but leaves the system multi-user with logins disabled (for all
but super-user).
-n If the -o is specified, prevent the file system cache from being flushed by passing -n option to halt(8) or reboot(8). This option
should probably not be used.
-o If -h or -r is specified, shutdown will execute halt(8) or reboot(8) instead of sending a signal to launchd(8).
-r The system is rebooted at the specified time.
-s The system is put to sleep at the specified time.
-u The system is halted up until the point of removing system power, but waits before removing power for 5 minutes so that an external
UPS (uninterruptible power supply) can forcibly remove power. This simulates a dirty shutdown to permit a later automatic power on.
OS X uses this mode automatically with supported UPSs in emergency shutdowns.
time Time is the time at which shutdown will bring the system down and may be the word now (indicating an immediate shutdown) or specify a
future time in one of two formats: +number, or yymmddhhmm, where the year, month, and day may be defaulted to the current system val-
ues. The first form brings the system down in number minutes and the second at the absolute time specified.
warning-message
Any other arguments comprise the warning message that is broadcast to users currently logged into the system.
- If '-' is supplied as an option, the warning message is read from the standard input.
At intervals, becoming more frequent as apocalypse approaches and starting at ten hours before shutdown, warning messages are displayed on
the terminals of all users logged in.
At shutdown time a message is written to the system log, containing the time of shutdown, the person who initiated the shutdown and the rea-
son. Corresponding signal is then sent to launchd(8) to respectively halt, reboot or bring the system down to single-user state (depending
on the above options).
A scheduled shutdown can be canceled by killing the shutdown process (a SIGTERM should suffice).
SIGTERM TO SIGKILL INTERVAL
Upon shutdown, all running processes are sent a SIGTERM followed by a SIGKILL. The SIGKILL will follow the SIGTERM by an intentionally inde-
terminate period of time. Programs are expected to take only enough time to flush all dirty data and exit. Developers are encouraged to
file a bug with the OS vendor, should they encounter an issue with this functionality.
SEE ALSO kill(1), login(1), wall(1), halt(8), launchd(8), reboot(8)BACKWARD COMPATIBILITY
The hours and minutes in the second time format may be separated by a colon (``:'') for backward compatibility.
HISTORY
The shutdown utility appeared in 4.0BSD.
BSD December 11, 1998 BSD