#!/bin/bash

function exit_trap() {
    printf "\n\nkilling ffmpeg now!\n\n"
    kill -INT $FFMPEG_PID
    printf "\n\nINT signal sent to ffmpeg process, it should output 'exiting normally...' anytime soon:\n\n"
    wait $FFMPEG_PID
    printf "\n\n ffmpeg gone, continuing with other stuff now"
}

ffmpeg -nostdin -f x11grab -s 500x500 -i :0.0+0,0 ~/video_`date +%s`.webm &
FFMPEG_PID=$!

trap exit_trap INT

wait