Sometimes I like my scripts to notify me when a long running process is done running in a terminal. Since I use a Linux desktop everywhere, I found this.
notify-send ["<title>"] "<body>"
this nifty line takes care of that in one go.
Another usage example:
Run a long script, and get notified via gnome notifications, I use this a LOT:
./my-really-long-job.sh && notify-send "Job finished"