Virtual memory is different from swap memory.

Swap memory is used when you run out of physical memory, so the memory is extended to your storage.

Virtual memory is an abstraction that lies between programs using memory and the physical memory in the device. It can be something like compression and memory-mapped files, like mentioned.

And yes, some swap is still useful, up to something like 4G for larger systems.

And if you want to hibernate to disk, you may need as much swap as your physical memory. But maybe that’s changed. I haven’t done that in years.

The easiest way is probably without sed, which you mentioned:

df -h --output=avail /dev/dm-2| tail -n1

But purely with sed it would be something like this:

df -h --output=avail,source | sed -n ‘/\/dev\/dm-2/s!/dev/dm-2!!p’

-n tells sed to not print lines by default

/[regex]/ selects the likes matching regex. We need to escape the slashes inside the regex.

s/// does search-and-replace, and has a special feature: it can use any character, not just a slash. So I used three exclamation points instead , so that I don’t need to escape the slashes. Here we replace the device with the empty string.

p prints the result

Check the sed man page for more details: https://linux.die.net/man/1/sed

Boy am I glad I don’t do C++ anymore. That string handling with the overloaded bitshift operator was wild.

What the heck is endl???

If you’re not already, just erase your darlings.

Then you can preview what files are lost on reboot (see blogpost).

They’re making a new browser engine from scratch in an open way, absolutely amazing!

I do have several questions:

Why would they use BSD instead of GPL? If you care about open-source so much, why would you make it possible for a company to run away with your fancy new engine?

Why are they creating a new browser, when even firefox has to struggle to keep some semblance of market share? I get that not every project needs to aim to be “the biggest”, and that even a smaller project (in terms of users), can be fun. It’s just that writing a browser engine that can handle the modern web seems like an almost Sisyphean task; which makes me wonder what their motivation(?) is.

Why the FLOSS are they using closed-source proprietary discord as their main communication channel?

That citrussy had Cloud acting most unwise.

It goes like this:

What?

😳

Exactly

To quote the post more specifically:

Even as our species destroys its only home, we assume that the solutions to climate change must lie in technology, without stopping to examine the role that this very attitude has played in the crisis.

This is so deeply ingrained in our social consciousness that, when there is a new impressive technology, we assume that it must be here to solve one of our big problems. As the AI hype quickens the pace of our ecological devastation, we’re so dazzled by the technology that there is actual debate in supposedly serious publications as to whether AI is going to save us from climate change, despite all evidence pointing to the contrary.

normal: command not found

It’s probably best to limit yourself to a used laptop.

Reading and writing code is nothing more than reading and writing text, and for that you don’t need a fancy gpu or screen.

What I would recommend you look for in a laptop is

• an SSD instead of an HDD
• more cpu cores (at least 4 cores)
• more memory (RAM) (at least 8GB, preferably 16GB+)

More memory and cores will help you with compiling and running your code.

And make sure you take regular backups! You never know when your disk will fail.

Also make sure to check linux compatibility before you buy. Laptops used to be a pain (10+ years ago), and it’s gotten a lot better, but it’s not always perfect. Just search for “[brand] [model] linux” or try to find the model on the archlinux wiki.