How to run a script after startup on Ubuntu 14.04?

Question

I have scoured the web and tried numerous solutions. Nothing has worked for me so far, hence this question.

I have a rails application that I run with mongrel_rails start -e production -p 80. That command has to be run from the directory of the application, in this case "/var/myapp".

This is the setup:

/etc/mongrel.sh

#!/bin/bash
sleep 15;
cd /var/myapp/
mongrel_rails start -e production -p 80

I added this (sh /etc/mongrel.sh) before exit 0 in /etc/rc.local

The above does NOT work, but it does work when run manually sh /etc/mongrel.sh. I have also tried running this in a screen session using: screen -d -m *command*.

Any suggestions to get this working as desired? I need this application running after boot.

Answer 1

You can add your script in cron job.

To add the script in cron job follow the below steps

1. Open terminal with root access.
2. Run crontab -e this command will allow you to edit your cron.
3. Add the line @reboot sh /etc/mongrel.sh

The above process will execute that script once your computer boots up.

Answer 2

Call /etc/mongrel.sh from /etc/rc.local. This script called rc.local is executed after all the normal system services are started, at the end of the process of switching to a multiuser runlevel, so you might use it to start your service,

Answer 3

In rc.conf you have have to tell the system where sh is. So use:

/bin/bash/sh /etc/mongrel.sh

That will allow the system to run the script.