Terminal

A practical guide to environment variables in Linux — how they work, how to set them, where they’re loaded from, and common use cases.

A practical guide to tar and gzip — creating archives, compressing files, extracting contents, and common patterns you’ll use daily.

A practical guide to using scp for secure file transfers between local and remote systems, covering common flags, patterns, and troubleshooting.

A practical guide to generating SSH keys with ssh-keygen, covering key types, common parameters, and best practices.