Ways to save Linux disk space and delete useless files

Tip tip linux

Created At : 2022-01-06 21:06

Save Disk

# get usage
df -h

#find 20 lagest directory in /
sudo du -ah / | sort -rh | head -20


# remove all unruning docker images and caches
docker system prune -a

vim /etc/docker/daemon.json

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

Execute

sudo journalctl --vacuum-size=100M
sudo journalctl --vacuum-time=10d