low space

df -h

Filesystem                    Size  Used Avail Use% Mounted on
tmpfs                          86M   11M   75M  13% /run
/dev/sda2                      20G   20G     0 100% /
tmpfs                         476M     0  476M   0% /dev/shm
tmpfs                         5,0M     0  5,0M   0% /run/lock
192.212.40.6:/6-40-SystemSvg  227G   32G  184G  15% /SystemSvg
192.212.40.6:/9-VideoClub     1,8T  774G  967G  45% /VideoClub
tmpfs                         146M  8,0K  146M   1% /run/user/1000

docker system prune -a
docker volume rm $(docker volume ls -qf dangling=true)
docker system prune --all --volumes --force

rm -rf ~/.local/share/Trash/*

sudo apt install trash-cli

trash-empty

sudo apt-get autoremove
sudo apt-get clean
sudo apt-get autoclean

sudo du -h --max-depth=1 | sort -h

0       ./dev
0       ./proc
0       ./sys
4,0K    ./cdrom
4,0K    ./media
4,0K    ./mnt
4,0K    ./srv
4,0K    ./VideoClub
16K     ./lost+found
16K     ./opt
52K     ./root
60K     ./home
68K     ./tmp
1,3M    ./run
6,7M    ./etc
428M    ./boot
823M    ./SystemSvg
1,7G    ./snap
4,7G    ./var
9,9G    ./usr
20G     .

<service_name>
	logging:
		options:
			max-size: "10m"
			max-file: "5"

/etc/docker/daemon.json

{
  "log-opts": {
    "max-size": "10m",
    "max-file": "5"
  }
}