How to create an autostart script in Linux (Red Hat / CentOS / Fedora)

How to create an auto start script in Linux (Red Hat / CentOS / Fedora):

Option 1: Use chkconfig script to run /etc/init.d/…

  1. Create a script and place in /etc/init.d (e.g /etc/init.d/myscript). The script should have the following format:
# chkconfig: 2345 20 80
# Source function library.
. /etc/init.d/functions
start() {
    # code to start app comes here 
    # example: daemon program_name &
stop() {
    # code to stop app comes here 
    # example: killproc program_name
case "$1" in 
       # code to check status of app comes here 
       # example: status program_name
       echo "Usage: $0 {start|stop|status|restart}"
exit 0 

Enable the script

  1. $ chkconfig --add myscript 
    $ chkconfig --level 2345 myscript on 
  2. Check the script is indeed enabled – you should see “on” for the levels you selected.
    $ chkconfig --list | grep myscript

You can then use the script like so /etc/init.d/myscript start or chkconfig myscript start.

Option 2: Another Option is to use crontab job and run it at Boot time.

You need to use special string called @reboot. It will run once, at startup after reboot command.

@reboot  /path/to/job
@reboot  /path/to/shell.script
@reboot  /path/to/command

This is an easy way to give your users the ability to run a shell script or command at boot time without root access. First, run crontab command:
$ crontab -e
# crontab -e -u doddi

Run a script called /home/doddi/bin/
@reboot /home/doddi/bin/ 

Under RHEL / CentOS / Fedora, you need to enable crond on boot:
# chkconfig crond on
# service crond restart

If you are using modern distro with systemd, try
# systemctl enable crond.service
# systemctl restart crond.service
# systemctl status crond.service


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