Build /tmp/passwd_summary.txt with exactly: total=3, bash=2, nologin=1.
Inspect `/etc/passwd` and write a small summary file at `/tmp/passwd_summary.txt` with EXACTLY these three lines:
```
total=3
bash=2
nologin=1
```
You can hard-code the numbers via three echos (`>` then `>>`), or compute them with `wc -l` and `grep -c`.
Sign in to save your code and track progress across devices.
