jobs.md

To schedule a job , you can use two alternates:

• cron
• at

cron is used for schedulling repeatitive tasks that needs to occur daily, whereas at is used for a single schedulling. I will be telling how to use at.

Check if at command is running or not.

$ ps -ef | grep atd

If it is running then you will see

daemon   21299     1  0 19:28 ?        00:00:00 atd

There can be meek possibility that it is not installed on your system. Install it by

sudo apt-get install at

After it is installed check again and if it is not starting then start it by

/etc/init.d/atd start

Now suppose you need to run a file named shell.sh located in the home directory. Do it by

at -f shell.sh -v 18:30

18:30 means 6:30 PM here

here is the link that you can refer.