Alert user that a job finished

gistfile1.sh

# Alert user that a job finished:
# lengthycmd; alert
# or
# lengthycmd
# <CTRL-Z>
# fg; alert
function alert() {
    JOB=$(history 1)
    if [[ "$JOB" == *fg\;* ]]
    then
        JOB=$(history 2 | head -n1)
    fi
    JOB=$(echo $JOB | sed -e "s/^\s*[0-9]\+\s*//" -e "s/;\s*alert$//")
    notify-send -i terminal "Task finished" "$JOB"
}