Tag Archive for 'linux'

Linux: How to lose data fast with ‘rsync’

Greer’s Third Law: A computer program does what you tell it to do, not what you want it to do.

I’ve been around Linux long enough to know that the fabled Linux command:
rm -Rf *
is dangerous, and I have to say I’ve never lost data by using that one wrong. But there are other, more subtle ways to lose data if you’re not careful, and today I’m going to share a tale of this. Continue reading ‘Linux: How to lose data fast with ‘rsync’’

Love/Hate/Linux

Linux is awesome in the sense that any and all kinds of software you’d ever need, is available for free – legally. It’s easy to see why people are so fond of it, because it’s an amazing experience.

Until you need to install new hardware, that is. A graphics card or, in this case, a TV tuner card. Then all hell breaks loose.tuner Continue reading ‘Love/Hate/Linux’

Revisiting Colemak

A good while ago, I mentioned an interest in another weird idea – after all, being weird is part of what makes me me. This is about a keyboard layout that is different from the “Qwerty” layout we’re all familiar with.

I had already been toying with the Dvorak layout and had made reasonable progress learning it, but I found that the position of keys used in typical keyboard shortcuts were bothersome – especially Ctrl+Z,X,C,V. Details like that are among the top arguments of the Colemak layout.

colemak keyboard layout

The Colemak layout looks remarkably similar to the familiar Qwerty layout.

Continue reading ‘Revisiting Colemak’

You do have backups … right?

Backups are important. Yes, we all know that. We’ve heard it before. Just like good passwords can save your (digital) life.

So, how are your backups doing?

dead-hd-2

Exhibit 41 in “things you never want to see”.

Ahem.

Continue reading ‘You do have backups … right?’

Ubuntu Linux: reducing CPU load caused by compiz

Geek warning: You can skip this post if you’re not familiar with words like Linux, Ubuntu, Unity, and compiz :-)

Note: Several readers have let me know this tip didn’t help them. I put the tip here because it does seem to help in some cases, but evidently it is not a bullet-proof solution. Do your own research before you decide to try the following. My sources are provided as a starting point.

I’ve long had a problem on my Ubuntu computer that compiz would use a lot of CPU power even when the computer was idle, even when no programs were running. My computer is quite powerful so when compiz uses 20% of all CPU cores, that’s a lot of processing going on. It causes the CPU to heat up which causes the fans to run faster which causes noise which annoys me. Clearly, something needed to happen.

I have finally come across the solution and because it was hard to find, I’ll take this opportunity to share it with the world.
Continue reading ‘Ubuntu Linux: reducing CPU load caused by compiz’