Coreutils - EYAD HUSSEIN - Python

[eyad-hussein]

CoreUtils in Python

Description

Goal is to reimplement several core Unix utilities, giving exposure to Python basics, including file I/O, flag parsing, string manipulation, and more.

Requirements

• [x] Create Python programs that replicate the functionality of the following Unix utilities:

  • [x] head
  • [x] tail
  • [x] wc (word count)
  • [x] cat
  • [x] echo
  • [x] tree
  • [x] env
  • [x] true
  • [x] false

• [x] Each utility should be implemented as a separate python program.

• [x] Programs should read input from files or stdin as appropriate.

• [x] Implement basic flags for each utility where applicable.

Example Implementations

1. head

• Print the first 10 lines of input by default.
• Add a -n flag to specify the number of lines to print.

2. tail

• Print the last 10 lines of input by default.
• Add a -n flag to specify the number of lines to print.

3. wc (word count)

• Count lines, words, and characters in the input.
• Add -l, -w, and -c flags to display only lines, words, or characters respectively.

4. cat

• Concatenate and print files.
• Add a -n flag to number output lines.

5. echo

• Print arguments to standard output.
• Add a -n flag to omit the trailing newline.

Acceptance Criteria

• [x] Each utility is implemented as a separate Python program.
• [x] Includes basic error handling.
• [x] Includes a README with build and usage instructions for all utilities.