# du -m --exclude=/mnt --exclude=/run/media --exclude=/proc / | sort -n | tail -n 20
# du -m $(find / -size +200M 2>/dev/null) 2>/dev/null | sort -n | grep -v 'mnt/\|run/media/\|proc/\|sys/'
# du -m $(find / -size +1G 2>/dev/null) 2>/dev/null | sort -n | grep -v 'mnt/\|run/media/\|proc/\|sys/'