Control
- Commands often provide complete access to the system and its devices.
- Most devices can be manipulated just like files
Flexibility
- Commands are just programs.
- Commands have common interface to allow inter-operation with other commands.
- Unix offers thousands of tools that can be combined and recombined.
Reliability
- Commands are typically lightweight since they typically do little more than invoke operating system calls.
- Unix is hard to crash.
- Provide multitasking, each user can perform multiple task easily.
Powerful
- Unix as an operating system can support almost any kind of software.
UNIX was developed at AT&T Bell Laboratories by Ken Thompson and Dennis Ritchie. It was finally written in C.
All UNIX flavors today offer a graphical user interface (GUI) in the X Window system. But the strength of UNIX lies in its commands and options.
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