London | SDC-Nov-25 | Pezhman Azizi | Sprint 4 | Implement shell Tools In Python

[Pezhman-Azizi]

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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 Python 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.

This PR adds Python 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.py

• Prints the contents of one or more files
• Uses argparse
• Matches basic behaviour of Unix cat

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ls.py

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

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wc.py

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

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🔹 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