Shell Programming and Scripting

Hi I need to bring down apps and reboot the servers .. this is still a plan. I haven't started yet. . Please suggest best way to reboot using a script. So that I can schedule a cron.
I am on solaris 10.

You can write a wrap up script and place it under rcX.d (for AIX it is runlevel 2, Figure out what is the multiuser level for Solaris) under /etc/rc.d directory.

To start it use capital S and to stop use capital K on the script.

This will bring down the application before rebooting the box.

Hey thanks for replying, have few points here. I am trying to automate the reboot,

with out touching rc3.d, I need to do this, as i have to get lot of approvals for that.

My code

Code:

sudo -t wam /usr/local/wam/stopwam -r     ------- this needs run as wam user
/usr/local/web/stopweb -a                             --- this needs to run as root
/sbin/init 6       ---- Is it safe to use this command for reboot?

for this as per above suggestion i have used

Code:

su -u wam -c <command> <args>

, this failed, I have to test this week with below

Code:

su -u wam -c "<command> <args>"

,

Also please suggest if any, Is it safe to reboot the server issuing init 6.

I would strongly suggest:-

Code:

echo "su - wam -c "/usr/local/wam/stopwam -r" > /etc/rc.d/rc3.d/K00wam
echo "/usr/local/wam/stopwam -r"  > /etc/rc.d/rc3.d/K00wam

.... then whenever you choose to boot, these will run. If the server detects something critical and goes into an emergency shutdown itself this will get run, e.g. critical power failure, overheating etc.


The OS is Solaris so I'm assuming that the path I have used is correct. You may need to adjust that. I haven't got a Solaris available to me.

Is there a reason that you don't want to work in the rc3.d directory? It is the standard place that you are encouraged to customise.



Regards,
Robin

Hi,

I have a different boot scripts in the same directory to start the applcations,

Here i need to bring down the applications and reboot the box.

Your start scripts are presumable named S.... If you read the script that calls these (possibly /etc/rc or /etc/rc.boot) you can read what it does an in what order. Assuming that you still have a fairly full /etc/inittab, it will be in a line towards the end that gives most (if not all) run levels in the second column.

Setting up K... scripts is perfectly standard stuff, most usually the scripts are actually in /etc/init.d or somewhere with links to it from /etc/rc.d/rc3.d, or wherever else is required.



Robin

thanks guys !! .
/etc/rc3.d is the dir.
i have copied my script which has other commands to /etc/rc3.d
..
Please accept my apology for being so basic..
As per my understanding till now, If we initiate a reboot, the scripts in rc3.d will run (which will bring down my apps)

Now, As mentioned above init or shutdown commands are not safe to initiate a reboot. could you help me with a best script or commands to initate a reboot.


Thanks in Advance !!