One big tree
Linux has a single tree of folders (called directories) starting at /, the root. Your files live in /home/learner, settings in /etc, logs in /var/log, programs in /usr/bin. Every file has a path: the route through the tree.
cd and paths
tree projects cd projects/cafe pwd cd api/src pwd cd ../.. pwd cd /var/log ls cd ~ pwd cd - cd
- / root of everything
- /home/<user> personal files
- /etc configuration
- /var/log logs
- /usr/bin programs
- /tmp temporary files