How to stop a currently running cron job?

How can I stop a cron job which is currently running?

You can do this the same way you'd stop any process.

To stop a currently running cron job, you can do one of the following:

pkill process-name

or if you know the PID (you can determine it by running ps):

kill 1234

(substituting the actual PID)

Strange, no one has mentioned this method:

$ crontab -e

In the opened editor, delete line of the task you want to stop or insert a # sign, save and exit

e.g.

before

* * * * * some_script1
* * * * * some_script2

after

* * * * * some_script1
#* * * * * some_script2

or

* * * * * some_script1

restart the service after making changes by

sudo service cron reload