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Introduction to UNIX Karl Harrison

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  • 1. Introduction to UNIX Karl Harrison September 2004
  • 2. The UNIX Operating System
    • An operating system (or "OS") is a set of programs that controls a computer
    • It controls both the
      • hardware (things you can touch—such as keyboards, displays, and disk drives)
      • software (application programs that you run, such as a word processor).
  • 3. The UNIX Operating System
    • Some computers have a single-user OS, which means only one person can use the computer at a time. They can also do only one job at a time.
    • But if it has a multiuser, multitasking operating system like UNIX. Then these powerful OSes can let many people use the computer at the same time and let each user run several jobs at once.
  • 4. Versions of UNIX
    • Now there are many different versions of UNIX.
    • At first there were two main versions:
      • The line of UNIX releases that started at AT&T (the latest is System V Release 4),
      • And from the University of California at Berkeley (the latest version is BSD 4.4).
  • 5. Versions of UNIX
    • Now commercial versions include SunOS, Solaris, SCO UNIX, SG IRIX, AIX, HP/UX
    • The freely available versions include Linux and FreeBSD 5.2 (based on 4.4BSD)
      • Many Versions of Linux - Redhat, Fedroa, Debian, SuSE and MandrakeSoft
    • Apple Mac OS X (FreeBSD 5.2)
  • 6. What is different with UNIX Hardware UNIX Kernel Services Commands & Shell GUI User Applications Other Users X Windows
  • 7. UNIX GUI’s -Apple OS X 10.4
  • 8. UNIX GUI’s -Apple OS X 10.4
  • 9. UNIX GUI’s -Fedora KDE
  • 10. UNIX GUI’s -Solaris
  • 11. UNIX GUI’s -SG IRIX
  • 12. Remote UNIX log on
  • 13. Oxford UNIX System
    • OUCS provides a general-purpose cluster of computers running Debian GNU/Linux.
    • The service is available to any University member who has a Herald account, and is accessed using Herald username and password on secure login to linux.ox.ac.uk .
      • http://www. oucs .ox.ac.uk/services/linux/
  • 14. UNIX Tutorials
    • Maui High Performance Computing Centre
      • http://www. mhpcc . edu/training/vitecbids/UnixIntro/UnixIntro .html
      • Also
      • http://www. chem .ox.ac. uk/course/unix/unix .html
    • Vi Editor
      • http://www.eng. hawaii . edu/Tutor/vi .html