Brian Fox is a notable American computer programmer and entrepreneur, best known for creating the GNU Bash shell. Born in 1953, he has made significant contributions to the open-source software movement, promoting free software principles and collaboration among developers. In addition to his work on Bash, Fox has been involved in various software projects and has worked with organizations that support open-source initiatives. His efforts have helped shape the landscape of programming and software development, making tools more accessible to users and developers worldwide.