Yet another linux trick I keep on forgetting…
To display a notification on the desktop from the command-line:
# apt-get install libnotify-bin
$ notify-send “hello world”
obv. “from the command-line” really means “from a script”, unless you’re in some Evil Dead situation of independently-mobile hands
[reason for looking: trying to get xmonad+dmenu to notify me when I mistype a command, rather than just failing silently]