Hi,

I want to write a program to run java program as deamon when the system boot up.

How can I write it on RH9.

Any one kow the answer plse.

Thank you.

To make any script/program run in the background, you simply append an amperstand to the end
ie: /bin/sh /home/underdark/update.sh >/dev/null &

To make it run on startup, you need to find the startup scripts (On my system: /etc/rc.d/) and either add or edit one to include the line to run your script

I put anything I want run at startup in

/etc/rc.d/rc.local

This is run after everything else at boot up. I run some demons and mount some filesystems. There are many other ways of skinning this cat!

Hello,

Can you tell me what kind of scripts add in the /etc/rc.d/rc.local

How can i see that my program is working.

This is what I have at the end of my rc.local. Just an example for you. It mounts various filesystems. shareprx is run as a demon hence the & at the end of the line. Commands like mount_spare are just bash scripts of mine.
I should think you can run most things. Append your stuff to the end of the file. Before you change a system file I keep a copy as insurance. ie
cp rc.local rc.local.original

have fun!


ifconfig eth0 192.168.1.2
hostname server
modprobe aic7xxx_old
modprobe ppa
#
swapon /dev/hdb2
#
mount -t reiserfs /dev/home /home
/home/source/shell/mount_spare
/home/source/shell/mount_disk2
/home/source/shell/mount_music
/home/source/shell/mount_cdimage
#
#
# restart xinetd else port 2007 for dialout not available
# for some reason
#
/etc/rc.d/init.d/xinetd restart
cd /home/teletext
/home/teletext/shareprx batch&
#
# start kiss server
/home/source/shell/run_kiss_server
#
#

/etc/rc.d/rc.local is the Slackware style for custom bootup calls; other distros have a different system, but if you poke around in /etc/rc.* you'll find it. Take a look at your distro's particular forum here at LQ and I'm sure you'll find more specifics.

I put simple echo "Checking running" command in /etc/rc.d/rc.local file

But that file have only two lines like
touch /var/...
I look for The path specify.BUt those files are empty files.

How can i add my file to there.

I cofused about daemon doing it many ways.

Can u tell me exact way to write a Daemon and place it where
with each and every steps Beacuse i am new so I stuck here.
My deamon objective is to execute a java program at system boot up.
Also i want to clarify whether my Daemon is running at start up.

If u can please hlp me.