Linux Learning Lab

How to use man pages effectively — understanding sections, navigating entries, reading the synopsis format, and finding the right documentation for any command, system call, or config file.

How to use SSH tunnels to securely access remote services, expose local servers, set up SOCKS proxies, and hop through bastion hosts.

How to use Vim’s visual block mode to select columns, insert text on multiple lines, delete vertical slices, replace blocks, and reformat aligned data.

A practical guide to sed — how to find and replace text, edit files in place, delete and insert lines, and use address ranges to target exactly what you need.

How to use branches to work on features independently, merge them back together, and resolve conflicts when they arise.