notify-send
Use the current desktop environment's notification system to create a notification. tldr-pages
On several platforms
Several platforms
Show a notification with the title "Test" and the content "This is a test"
notify-send "Test" "This is a test"IdentifyShow a notification with a custom icon
notify-send --icon icon.png "Test" "This is a test"IdentifyShow a notification for 5 seconds
notify-send --expire-time 5000 "Test" "This is a test"IdentifyShow a notification with the specified urgency level (default: normal)
notify-send --urgency low "Test" "This is a test"IdentifyShow a notification with an app's icon and name
notify-send "Test" --icon google-chrome --app-name "Google Chrome"Identify