Display a notification when tar finishes compressing files

Monitor a process and trigger a banner notification.
More information: <https://github.com/variadico/noti>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

noti {{tar -cjf example.tar.bz2 example/}}

click the source code to copy install noti on any operating system with command-not-found.com