Build Your Own wc Tool

This project is a solution to the "Build Your Own wc Tool" challenge implemented in Rust.

Introduction

The Unix command line tool wc is a widely used utility that counts the number of bytes, words, and lines in a file. This challenge aims to implement a simplified version of wc following the Unix philosophies of simplicity and modularity.

Challenge Overview

The challenge consists of several steps, each requiring the implementation of a specific feature of wc:

• Step One: Implement counting bytes (-c option).
• Step Two: Implement counting lines (-l option).
• Step Three: Implement counting words (-w option).
• Step Four: Implement counting characters (-m option).
• Step Five: Implement default counting (equivalent to -c, -l, and -w options).
• The Final Step: Implement reading from standard input if no filename is specified.

This challenge is available on CodingChallenges.fyi.

Usage

To use the ccwc utility, follow the steps below:

1. Clone the repository.
2. Navigate to the project directory.
3. Build the project using cargo build.
4. Run the executable with appropriate options and input file.

Example usage:

# Count bytes in a file 
ccwc -c file.txt

# Count lines in a file 
ccwc -l file.txt

# Count words in a file 
ccwc -w file.txt

# Count characters in a file 
ccwc -m file.txt

# Default count (bytes, lines, and words) 
ccwc file.txt

# Read from standard input 
cat file.txt | ccwc