
Description: Hamilton C shell is a Unix shell based on the C programming language. It was created as an alternative to the standard Bourne shell, providing additional features like command history, tab completion, and others to aid productivity.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Cygwin is a Linux-like environment and command-line interface for Windows. It provides functionality similar to a Linux distribution on Windows, allowing you to port software running on POSIX systems and run it natively on Windows.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API