IT Sky Consulting GmbH
For changing file contents, we often use editors. But sometimes it is a good idea to do this from a script and do a change to many files at once or do the same kind of changes often. The classic approach to this is using sed, which is made exactly for this purpose. But most …
„Automatic editing“ weiterlesen
Quite often we need to do something (system engineering, software development, database,…) and when we let ten people do it, it will be done in eleven different ways. Some organization like to „standardize“ things… And to some extent that is needed actually. But the challenge is to find what needs to be standardized and what …
„There is more than one way to do it“ weiterlesen
Now that git has become the standard version control software, which is used by software developers. Now for system engineering and system administration purposes it used to be an approach to just login and do something and remember it or even note it somewhere. Some people tried to just use RCS or SCCS on the …
„Git for Linux System Engineering“ weiterlesen
How do we use Perl and Java together? Unlike many other languages, that for example run in the JVM, it is not particularly easy to combine them. But that is not the idea. A good starting point is thinking about houses and furniture. While it is perfectly possible to build houses of wood or furniture …
Deutsch When programming in Java, it is kind of part of the language to write classes with attributes and equip these attributes with „getters“ and „setters“. You could do otherwise, but you just don’t. But some criticism is of course allowed. Even if it only applies to the design of future languages or to minor …
„Getters and Setters“ weiterlesen
We are talking about system administration and system engineering for Linux. Most of this also works more or less the same on Unix, but this is today much less relevant. It is even possible to do some of these things on MS-Windows, but that is another story… So just assume for the time being OS=Linux. …
We often read that code reviews are a good idea. Bugs can be found, people are encouraged to keep to team standards, know-how is spread in both directions and code becomes more maintainable. Also it helps sharing responsibility. So basically the time spent for the code reviews is well spent and increases the long term …
I participated online in the conference „Functional Scala 2020“ in London. That it was in London had mostly one relevance, which was the time zone. There was no physical location and all talks were done online. An interesting idea was a virtual location. It consisted of rooms and we could move a dot representing ourselves …
„Functional Scala“ weiterlesen
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, …
„Devoxx UA 2020 (talks)“ weiterlesen
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 …