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| | Unix - Wikipedia, the free encyclopedia |
 | | Unix or UNIX is a computer operating system originally developed in the 1960s and 1970s by a group of ATandT Bell Labs employees including Ken Thompson, Dennis Ritchie, and Douglas McIlroy. |
 | | The Unix systems are characterized by various concepts: plain text files, command line interpreter, hierarchical file system, treating devices and certain types of inter-process communication as files, etc. In software engineering, Unix is mainly noted for its use of the C programming language and for the Unix philosophy. |
 | | The system is also known for the use of a large number of small programs that can be strung together to complete a task with a pipe, as opposed to using a single larger program that includes all of the same functionality. |
| en.wikipedia.org /wiki/Unix (5372 words) |
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