making a application a service in linux

Posted on 2004-09-12
Last Modified: 2013-12-06
I need to find the BEST way to run a app as a service in linux.

Im going to run a php script that will call that app and start or stop it. We currently do this in windows using the net stop service_name and we need a similar way in linux. Something like firedaemon but for linux.

The solution should meet the following requirements:

1.) be able to start,stop,restart the service from a php script via the internet.

2.) be a stable solution.

3.) run any type of app i choose to run this way.

Thanks for any help you can provide!
Question by:Brad_nelson1
  • 2
  • 2
LVL 40

Accepted Solution

jlevie earned 500 total points
ID: 12038873
You'll want to look at the init scripts, usually in /etc/rc.d/init.d, that are used to manage Linux services.  Each of the scripts will have at a minimum a start & stop function, and may include functions to restart, reload, or return status as desired. You can see how these work in the section on "Init" in

For Linux systems that use the SysV chkconfig the man page for chkconfig will also be helpful.

Author Comment

ID: 12038970
Well I have learned about the utility called screen, this will create a virtual session that runs the app.  I have it working so now all i have to do is kill the pid that the username is running.

Does anyone know how i would go about matching the PID with the username so that i can kill that pid?


Expert Comment

ID: 12039124
ps aux | grep username | awk '{ print $2; }'

The above command will give you the pid's of all the processes run by the user: 'username'
To eliminate the last 4 lines from the above output:

ps aux | grep username | awk '{ print $2; }' | head -n-4

If you want to kill all the processes listed by the above command:

ps aux | grep username | awk '{ print $2; }' | head -n-4 | xargs kill -9

You can get the list of pid's of the processes you are running by replacing "username" in the above command with program name.

Author Comment

ID: 12039175
im running Red Hat Linux, it appears some of those commands are invalid, because they the bottom line doest run correctly. Is that code be compatible for RH?

Expert Comment

ID: 12039619
Those commands should work fine in RH. I'm personally using RH. But if the last line [ps aux | grep username | awk '{ print $2; }' | head -n-4 | xargs kill -9] does not work for you, maybe xargs is not available in your system. Try this instead:
for processid in `ps aux | grep username | awk '{ print $2; }' | head -n-3`; do  kill -9 $processid; done
NB: note the apostrophe's in the first line. The one just before 'ps' is usually the key just below ESC. The one inside is the other one. You may copy the code exactly to your shell.

If head don't work for you, omit it. That shouldn't be much problem:
for processid in `ps aux | grep username | awk '{ print $2; }' `; do  kill -9 $processid; done

If awk is a problem, try:
for processid in `ps aux | grep username | tr -s ' ' | cut -d ' ' -f 2`; do  kill -9 $processid; done
NB: There's a space between the internal apostrophe's. You may copy the code exactly to your shell.

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SSH (Secure Shell) - Tips and Tricks As you all know SSH(Secure Shell) is a network protocol, which we use to access/transfer files securely between two networked devices. SSH was actually designed as a replacement for insecure protocols that sen…
It’s 2016. Password authentication should be dead — or at least close to dying. But, unfortunately, it has not traversed Quagga stage yet. Using password authentication is like laundering hotel guest linens with a washboard — it’s Passé.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now