wc

Word Count (wc) Implementation

A Rust implementation of the Unix wc command that counts lines, words, characters, and bytes in files.

Features

• Line counting (-l): Count newlines in the input
• Word counting (-w): Count words (sequences of non-whitespace characters)
• Character counting (-m): Count UTF-8 characters
• Byte counting (-c): Count bytes
• Multiple files: Process multiple files and show totals
• Standard input: Read from stdin when no files are specified

Usage

# Count all stats (lines, words, bytes) - default behavior
cargo run -- filename.txt

# Count specific stats with flags
cargo run -- -l filename.txt          # Lines only
cargo run -- -w filename.txt          # Words only
cargo run -- -c filename.txt          # Bytes only
cargo run -- -m filename.txt          # Characters only
cargo run -- -lwc filename.txt        # Multiple flags

# Multiple files (shows totals)
cargo run -- file1.txt file2.txt

# Read from standard input
cat filename.txt | cargo run

Build and run

cargo build --release
cargo run -- test.txt