Log Surgeon

A web server log file at `~/server.log` contains 500 lines of access logs in standard Apache/Nginx format. Analyze it and create `~/report/` with these files: - `unique_ips.txt`: the total number of **unique IP addresses** - `errors_404.txt`: the count of **404 Not Found** responses - `top_ip.txt`: the **most frequent** IP address *Hint: combine `awk`, `sort`, `uniq -c`, and `wc -l`.*