Dr. Mark Humphrys

School of Computing. Dublin City University.

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My big idea: Ancient Brain


CA216      CA249      CA318

CA400      CA651      CA668

CA249 - Enterprise Computer Systems Configuration

Quickest way to find this web page:
Google ca249 dcu
Think about it: All other ways (starting at the CA site, Googling my name, etc.) will take much longer to get here.
Just Google module code and DCU and it is the first hit.

This page is not applicable this year

This page is not applicable for the 2017-18 year. I am on leave and not doing this module.


Repeat lab 2017

Repeat lab: Fri 4 Aug 2017. 2 pm. L125.
Lab will be revealed on the day.

  1. Get stock prices


Practical work

The practical (50 percent of the module) will be divided as follows:


How to contact me

See How to contact me.

My section - Intro to Linux and Shell scripting

My notes contain many hyperlinks to background material. Some students get confused about what is the core course. The core course is anything that is linked to directly on this front page. All other links are just background material.



Assignments and exercises

Week 1

Linux (and UNIX-like systems)
  1. How to login to Linux at DCU

  2. How to find your Linux/Unix version

  3. Introduction to UNIX

  4. Lab - Intro to UNIX / Linux

  1. Linux Quiz 1

Week 2

  1. Introduction to UNIX (More)

  2. More UNIX

  3. UNIX / Linux tutorials [REFERENCE]
  4. UNIX / Linux reference [REFERENCE]

  1. Linux Quiz 2

  2. Linux Quiz 3

Week 3

  1. UNIX file protections
  2. UNIX directory protections


  1. Introduction to Shell

  2. Lab - Shell
ASSESSMENT - 5 percent of module
- write in lab, marked in lab
  1. Lab - cweb

Week 4

  1. Sample Shell programs

ASSESSMENT - 5 percent of module
- write in lab, marked in lab
  1. xprog

Week 5

  1. Sample script - filterbaks
  2. How to set up an active desktop in 6 lines of Shell
  3. How to debug a program

  4. More on Shell

ASSESSMENT - 5 percent of module
- write in lab, marked in lab

  1. Command-line image processing

Week 6

  1. Shell utilities

  2. How to write a search engine in 9 lines of Shell

ASSESSMENT - 10 percent of module
- write in lab, marked in lab
  1. Search engine



Sometimes I link to Wikipedia. I need to write something in defence of this.

On the one hand, Wikipedia is deeply flawed, so you should use all links to Wikipedia with extreme caution. Many people refuse to link to it.

On the other hand, it is often clearly the best thing to link to on a topic. I say: Link to it, but use with caution and scepticism.

Mark calculator

Exam (50): Practical (50):

Total mark:      

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On the Internet since 1987.