Learners, PR Template

Self checklist

• I have titled my PR with Region | Cohort | FirstName LastName | Sprint | Assignment Title
• My changes meet the requirements of the task
• I have tested my changes
• My changes follow the style guide

Changelist

This PR adds JavaScript (NodeJS) implementations of the three shell tools required for the sprint: cat, ls, and wc.
Each tool is implemented in its own commit for clarity and easier review.

What's Included

cat.js

• Prints the contents of one or more files
• Supports basic usage and incremental flag handling
• Matches the core behaviour of Unix cat

ls.js

• Supports -1 (one entry per line)
• Supports -a (show hidden files)
• Uses fs.readdirSync() and simple filtering

wc.js

• Supports counting lines, words, and bytes
• Implements flags -l, -w, -c
• Supports multiple files and prints a total line
• Uses NodeJS fs for UTF-8 byte counting

📝 Notes

• All tools behave as required in the sprint instructions
• Each tool lives in its own folder (cat, ls, wc)
• Each tool has its own clean commit for easier code review