Color calculator

I’ve been preparing some figures, where I needed a colour palette that is visually appealing and offers good contrast between at least two colours. I am not a designer and I have no experience with these things… So, I googled a bit and I found the Color Calculator, offered by Sessions College for Professional Design.

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Rotate object around other object center in Inkscape

I had do design a simple scheme of a cell with certain markers expressed on its surface. The idea is pretty straightforward: draw a circle for the cells and draw a rectangle for the protein. But what if I want to change its position, by rotating it around the circle center?
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Remove new lines from a text file

I want to copy some text from a PDF file into a word processor. Copying works, but the line breaks from the PDF formatting are also copied. This messes up the text and results in disconnected text with many rows. I decided to use the command line to fix this automatically. I searched a bit and it seems that there are two steps that have to be taken.
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uBlock Origin

I was never too happy with the different web browser Ad Blockers, but I was too busy to actively start searching for different options. There was a discussion on LQ about browsers, where uBlock Origin was discussed. So, I decided to give it a try.
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XFS: corruption of in-memory

Well… one of my partitions, on a SSD, suddenly died. I’ve been building packages in a virtual machine (VB 5.2.28 r130011) of Slackware 14.2 x86_64. All was going fine until my desktop, the host machine, completely froze. Could not go to another runlevel or anything. In the end, I pushed the reset button, and upon boot my /home partition (sda3) did not mount.
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