Unix
Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at Bell Labs. It provides a powerful command-line interface, a hierarchical file system, and a philosophy of small, modular tools that can be combined to perform complex tasks. Unix systems are known for their stability, security, and portability across various hardware architectures.
Developers should learn Unix for system administration, scripting, and server management, as it underpins many modern operating systems like Linux and macOS. It is essential for backend development, DevOps, and cloud computing, where command-line proficiency and understanding of system processes are critical. Unix skills are valuable for tasks such as automation, file manipulation, and network configuration in production environments.