Ntfy.sh

#!/bin/bash

function usage() {
    echo "Usage: $(basename $0) text to display"
    exit 0
}

-z $1  && { usage; }

echo "$1 "|xargs -I {} osascript -e 'display notification "{}" sound name "submarine"'

watch --interval 5 ntfy.sh "process is finished"

See also

• Sound notifications: tput bel, paplay, echo -e '\a', printf '\7', osascript -e 'beep 1', afplay, ping -a, say, ntfy.sh, bip (alias)