libnotify

Library for sending desktop notifications to a notification daemon

brewmacoslinux

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Library that sends desktop notifications to a notification daemon

notify-send

Send a simple desktop notification with a title and message$ notify-send 'Hello' 'This is a notification'

Send a notification with urgency level and custom timeout$ notify-send -u critical -t 5000 'Alert' 'Important message'

Send a notification with an icon$ notify-send -i dialog-information 'Info' 'Check this out'