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Fedora 9 and KDE 4 

I’ve recently upgraded my home PC from Fedora 8 to Fedora 9. One of the big benefits (apart from getting the very latest Firefox and Thunderbird packages) is that F9 features KDE 4, the latest version of the KDE desktop window manager.
Fedora 9
To upgrade, I followed the excellent instructions at http://www.gagme.com/greg/linux/f9-tips.php. The key point is [...]

Units 

I was recently reminded of the excellent ‘units’ program, available with all good Unix systems.
Units will convert quantities expressed in one unit in to another unit. Here’s an example:

$ units
2439 units, 71 prefixes, 33 nonlinear units
You have: 12 miles
You want: kilometres
* 19.312128
[...]

What's RSS, and why do I need it? 

RSS is short for Really Simple Syndication. It’s an easy way to keep up to date with frequently changing websites.
Let me give you an example. This web page changes every time I write a new post (admittedly not that often). Rather than periodically checking this page for updates (or, more likely, forgetting all about it [...]

Necessary Spelling 

Here’s a handy acronym to help remember how to spell ‘necessary’.
Never Eat Chips, Eat Salmon Sandwiches And Remain Young.
My Computer Science teacher taught me this at college

How To Open The Bonnet On A Ford Focus 

Opening the bonnet on a Ford Focus turns out to be a remarkably difficult thing to do. In case you don’t have the manual to hand (or can’t be bothered to find it), this is what you do…

Swivel the Blue Oval Ford badge on the front of the car anti-clockwise. It pivots about a point [...]

Using Cron 

Cron is a handy utility available on (as far as I know) all Unix systems. It provides a mechanism for starting specified jobs at pre-determined times. So, for example, on my Linux laptop I have a cron job which runs every day which removes any files older than 7 days from the /tmp directory. Cron [...]

Transferring Lots Of Small Data 

I was in the situation recently where I needed to transfer about 500Gb of data from one HP-UX box to another.
Unfortunately most of these data were in small files - the largest probably a megabyte or so.
I ran some speed tests. We had gigabit ethernet connecting the 2 boxes on a little used LAN.
I wrote [...]

Backup 

If the first step in any procedure is ‘backup your data’, for goodness’ sake do as it says!
Don’t think that because you’re more technical/brighter/don’t really care about the existing data that you’ll be OK.
If you don’t have a back up Murphy’s Law dictates that something disastrous will happen and you’ll lose everything.
If you do have [...]

What’s My IP Address? 

That’s an interesting question!
First the High Level Overview For Beginners
OK, maybe first we should ask ‘Why do we care?’
IP stands for Internet Protocol. It’s part of the TCP/IP (Transmission Control Protocol / Internet Protocol) network protocol which is used, pretty much, by all computers connected to a network. By network I mean a [...]