File Scanner

Phase 1 – File discovery and safe access checking

Build a Python script that walks through user-accessible directories, checks permissions before opening files, and lists only the paths that can be safely read.

• Recursively explore directories
• Check read permissions before access
• Collect readable file paths

Functional result: Script outputs a correct list of safely accessible files.

Phase 2 – Keyword search and line extraction

Extend the script to scan readable files for target keywords and print each matching line while handling errors gracefully.

• Open each readable file securely
• Search for keywords like “secret”, “password”, “info”
• Print lines containing matches

Functional result: Script outputs all detected lines containing specified keywords.