Problem

We used Arch Linux for a while, updating regularly using Pacman. We used Docker for Development and/or other reasons. Now there are hidden files on our Machine, that claim a lot of Space.

Solution

Clean Pacman

Delete old PacMan Packages from Cache by running this in Terminal:

sudo paccache -r 

Clean Docker

Delete all Docker Images. But do now worry. You can always rebuild them or pull them from DockerHub.

sudo docker system prune -a -f