Install killer by entering the following commands in the terminal:
sudo apt update sudo apt install killer
Description:
Background job killer
killer is a perl script that gets rid of background jobs. Background jobs are defined as processes that belong to users who are not currently logged into the machine. Jobs can be run in the background (and are exempt from *killer*'s actions) if their scheduling priority has been reduced by increasing their nice(1) value or if they are being run through condor. . When the package is installed, a cron job is installed to run killer once an hour.
Version: 0.90-12
Section: universe/misc