I notice following problem during test of start script. I have done:
1) In rc4.d I created link: /sbin/rc4.d/S999myscript that is a link to my own script created in: /sbin/init.d/myscript
2) my script does as follows:
#First: switches to user "myuser" and executes myscript.sh script as below:
#!/bin/sh
/usr/bin/su - myuser -c "/home/myuser/myscript.sh" >> /dev/null
#Second: It checks if previous command was successfully executed and if not it writes error to log... if yes it sends good notice to log as example below:
x=$?
if [ "$x" -gt 0 ]; then
echo "myscript failed to start" > /home/myuser/myscript.log
else
echo "myscript started"
exit 0
fi
3)Finally in /home/myuser/myscript.sh script is following action taken - start program:
nohup ./start_binary_program &
exit 0
Now I tested few scenarios and the most important and problematic for me is that
when I start it manually from command line:
./S999myscript
I see process of my_binary_program running once.
When I go from run level 3 to run level 4 I can see two processes of my_binary_program started the same time... exact started almost in the same second...
I checked rc.log and I confirm that somehow... this start script is called two times......
I can say it after following test:
I modified /sbin/init.d/myscript by adding one line that writes current date to /tmp/out.log
as follows: date >> /tmp/out.log.
So the script looks like:
#!/bin/sh
date >> /tmp/out.log
/usr/bin/su - myuser -c "/home/myuser/myscript.sh" >> /dev/null
x=$?
if [ "$x" -gt 0 ]; then
echo "myscript failed to start" > /home/myuser/myscript.log
else
echo "myscript started"
exit 0
fi
Maybe you could help somehow becaus at this stage I don't have more ideas what can be wrong...
