FAQ
General

  • What is UNIX?
  • What is a Kernel?
  • What is a Shell?
  • What is an X-Term?
  • What is a Client?
  • I forgot my password. What do I do?

What is UNIX?

UNIX is an operating system that was designed at AT&T's Bell Laboratories in 1969. While that makes UNIX very old by computer standards, it is still popular today because of its power, flexability, and portability. UNIX can run on platforms ranging from PCs and Macs to Cray supercomputers.
What is a Kernel?
Today you'll find several flavors of the UNIX operating system (also known as the "kernel"). AT&T's original version evolved into System V (pronounced "system five"). The version that AT&T licensed to the University of California at Berkeley is called BSD (Berkeley Software Distribution). It is now the de facto standard in the academic community. Other versions are also available from commercial vendors: Sun's Solaris, SCO and Microsoft's XENIX, IBM's AIX, DEC's ULTRIX, Apple's A/UX, and the free Intel-based Linux.
What is a Shell?
Users rarely use UNIX directly. The utility software that interprets a user's commands for the kernel is called the shell. Here too, there are several flavors. The original and most common shell is the Bourne shell (its prompt is "$"). The C shell ("%" or ">") is newer and provides an extensive command language similar to the C programming language. C shell is the default shell for users of UNM's AIX machines. The Korn shell (also "$") attempts to combine the best of both the Borne and C shells. More than one shell is often available to users on a UNIX system.
What is an X-Term?
What is a Client?
I forgot my password. What do I do?

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