A lightweight cross-platform getopt alternative that is tested on Linux, Windows, FreeBSD and macOS. Command line argument parser library for C/C++. Can be used to parse argv and argc parameters.

An "upgrade" to BASH built-in getopts, with support for GNU-style long option.

GNU getopt and getopt_long for Windows and Unix-like OSes

getopt-like command line arguments parser for Rust.

Parses command-line arguments to statically typed options with the help of usage description.

C++17 argument parsing.

Allows you to combine getopt with getopts and also get rid of the need for --longopt=x

A port of GNU getopt to .net, written in C#.

getopt for Windows

用C实现linux中ls功能（包括长选项和短选项，手动处理option以及调用getopt_long）

An example code for GNU getopt_long function

Handle -M and -m options like perl

C++ command line arguments parser with the popular features of other command line parsers, while keeping an intuitive interface and avoiding unnecessary bloat.

Calculates n! or n!! (C99, Python3)

Bio Python Project using getopt library in python and engaging with the command line prompt.

Kit CLI argument parser. Supports nested commands each with their own arguments.

Program for Linux terminal.

A project that automatically solves Sudoku

Examples of parsing command line arguments in BASH

A thread-safe, more intuitive alternative to getopt_long() that features word-wrapping help output and nested subcommands.