← Linux & ToolsLINUX & TOOLS 2.1

Linux Command Line

Filesystem layout, daily navigation, find & grep, permissions, links, and archives — the shell reflexes Phase 1 never needed but every session from here on assumes.

First topic of Phase 2, and the first material since Phase 1 wrapped that isn't C at all — three chapters building the command-line reflexes that Phases 3 through 5 assume are already automatic, the same way Core Syntax assumed gcc and printf were automatic by the time Advanced C started.

The three chapters

  • A — Filesystem & Files. The /proc /sys /dev /etc /var /usr hierarchy, daily navigation, find & grep, permissions, hard vs. soft links, archives.
  • B — Processes & System from the Shell. ps/top/kill, job control, pipes and redirection, system info, environment variables.
  • C — Shell Scripting Minimal. Script anatomy, conditionals, loops, functions — deliberately light, since driver interviews rarely probe bash deeply.
Environment

WSL (Ubuntu) confirmed working on my own laptop this session — the navigation and find/grep practice rounds both ran clean there instead of staying purely theoretical. VirtualBox isn't needed until Phase 4, when kernel modules actually have to build against a real kernel tree.

Notes from readers

Comments — via GitHub