count_exts

A fast and efficient command-line utility that counts file extensions from stdin input, providing sorted statistics of file types in a directory.

Features

• Reads file paths from stdin
• Case-insensitive extension counting
• Sorts results by frequency
• Handles files without extensions
• Efficient processing of large inputs
• Async support with Tokio runtime

Installation

From Source

Make sure you have Rust installed (rustup), then:

git clone https://github.com/rakki194/count_exts
cd count_exts
cargo install --path .

Usage

The utility reads file paths from stdin and outputs extension statistics. You can pipe the output of commands like find or ls into it:

# Count extensions in current directory
find . -type f | count_exts

# Count extensions in specific directory
find /path/to/directory -type f | count_exts

# Using with ls
ls -1 /path/to/directory | count_exts

Example Output

.txt: 42
.rs: 15
.toml: 3
[no extension]: 2
.md: 1

Output Format

• Extensions are displayed with a leading dot (e.g., .txt)
• Files without extensions are shown as [no extension]
• Results are sorted by frequency (ascending order)
• Each line shows the extension followed by its count: extension: count

Dependencies

• anyhow (v1.0.96) - Error handling
• tokio (v1.43.0) - Async runtime support

Development

Running Tests

cargo test

The test suite includes various scenarios:

• Basic extension counting
• Handling files without extensions
• Case sensitivity
• Empty input handling
• Empty line handling

Building

cargo build --release

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Repository

• GitHub: https://github.com/rakki194/count_exts
• Documentation: https://docs.rs/count_exts