How to disable touchpad (on Linux/X11)

For me it is much better to use an external mouse than the touchpad, which I sometimes touch accidentally. So, here is how to disable it with a short Perl-Script. A bash script with a bit of Perl would do the same, btw. #!/usr/bin/perl my $tp = `xinput list | egrep -i touch`; chomp $tp; …

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Devoxx UA 2020 (talks)

I watched the conference onlie and picked the following talks: The Effective Developer – Work Smarter, Not Harder by Sven Peters Polyglot, Fault-Tolerant Event-Driven Programming with Kafka, Kubernetes and gRPC by Natan Silnitsky Reacting to an Event-Driven World by Grace Jansen Cause of Death: Hibernate by Thorben Janssen NoSQL Endgame by Otavio Santana, Thodoris Bais, …

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Devoxx UA

Most conferences have been cancelled, since it is difficult to hold a conference these days. The idea to move the conference online has been obviously around, but it was rejected by most organizers, because it it not the same and the all important chance to meet other people is just not the same.  So the …

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How to rename files according to a pattern

We often encounter situations, where a large number of files should be copied or renamed or moved or something like that. This can be done on the Linux command line, but it should be possible in almost the same way on the Unix/Linux/Cygwin-command line of newer MS-Windows or MacOS-X. Now people routinely do that and …

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GIMP

In spite of working mostly for server software and server setup using powerful non-graphic command line tools and scripting languages, it is sometimes fun to work with something very graphical. I did talk about Clojure Art, which is fun and creates interesting visual results and helps getting into the phantastic language Clojure. But more than …

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How procurement can create value for IT projects

We know this, in many IT projects we need to make use of services and software and hardware that needs to be bought. Actually it often makes a huge difference, what kind of deals are made and how efficient the projects can work on this basis. I will just briefly tell a few stories and …

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How bad can a bad IT be for a company?

Just a funny story that happened some years ago… I wanted to buy some lamps in a stored somewhere 100 km away from where I lived. So I went to the shop, ordered them and bought something else already. Now I went there again when the lamps were there. I had ordered six lamps, but …

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Just run it twice

Often we use some kind of „clustered“ environment to run our software. This promises higher performance and better availability. And the frameworks seem to suggest that it is just a matter of starting it twice and it will magically work correctly. There is nothing wrong with investing some thoughts on this issue. It can actually …

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How far to go with internationalization?

I had some experience with mobile apps in Sweden. Since I know Swedish, I did not bother to find out, if they support other languages. But they were potentially important and useful, but implicitly required a domicile in Sweden. More concrete, the apps that I was interesting in using were „Dalatrafik“ and „Swish“. Swish is …

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Some thoughts about Usability

Just from the users perspective, some thoughts and experiences concerning usability… I have to pay my phone bill every month. It is one for phone, internet, and everything, but it needs to be payed. It is mostly used for the company, so it is paid by my company and I need a proper invoice and …

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