GNU Screen is a terminal multiplexer, a software application that can be used to multiplex several virtual consoles, allowing a user to access multiple separate login sessions inside a single terminal window, or detach and reattach sessions from a terminal. Developed by Free Software Foundation
License: Open Source
Byobu offers a more user-friendly experience with enhanced features like split windows and mouse support, making it suitable for users who prefer a graphical interface. GNU Screen, on the other hand, is lightweight and highly configurable, appealing to advanced users who appreciate command-line tools and minimalism.