Shell01 42 -

Using ls -R | wc -l (which miscounts hidden files and directory names). Solution: find . -type f -o -type d | wc -l Key lesson: find is your best friend. ls is your enemy for scripting. 3. skip - The Seduction of sed Prompt: Print every other line (starting from the first).

But once you finish it, you will never look at a terminal the same way again. You will start piping grep into awk into sort in your sleep. And that is exactly the point. shell01 42

The official goal of Shell01 is simple: "Introduction to basic commands and the manipulation of files and directories." However, anyone who has passed through 42’s common core knows the reality: Using ls -R | wc -l (which miscounts

Good luck, cadet. The shell awaits.

Writing a manual counter with awk . Elegant Solution: sed -n 'p;n' (print, then skip next line). Key lesson: Learn sed 's addressing modes. One-liners beat multi-liners. 4. r_dwssap - The Mirror of /etc/passwd Prompt: Take /etc/passwd , keep every other line starting from the 2nd, reverse login order, swap : for spaces, and print only users with a specific shell. ls is your enemy for scripting