Runs command in background and shows notification window on completion

run.sh

#!/bin/bash

_run() {
        wd=$PWD
        bash -cli "$*"
        result=$?
        [ $result == 0 ] && description="Successfully executed" || description="Failed with code $result"
        cmd=${*:-"Nothing"}
        file=`mktemp`
        trap "rm $file" EXIT ERR TERM KILL
        echo -e "$description:\n" > $file
        echo "Command:   $cmd" >>$file
        echo -n "Directory: $wd" >> $file
        LANG=C xmessage -default okay -file $file
        rm $file
        return $result
}

_run $* &