Remember: militaries usually buy from the lowest bidder, so anything military-grade is probably low quality.
Also, email isn’t a great medium for communicating securely, since the other party has to be just as mindful about security as you; otherwise it’s basically security theater.
You could try [0-9] instead?
awk '/\/dev\/loop[0-9]/ {print}'
If you have a larger sample of input and desired output, people can help you better.
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.
In the end I’ve used the first command you wrote, because KISS, but I appreciate your explanation
There’s no shame in combining multiple tools, that’s what pipelines are all about 😄.
Also there’s a different tool that I would use if I want to output a specific column: awk
df -h —output=avail,source | awk ‘/\/dev\/dm-2/ {print $1}’
For lines matching /dev/dm-2 print the first column. awk splits columns on whitespace by default.
But I would probably use grep+awk.
Sed is definitely a very powerful tool, which leads to complex documentation. But I really like the filtering options before using the search/replace.
You can select specific lines, with regex or by using a line number; or you can select multiple lines by using a comma to specify a range.
E.g. /mystring/,100s/input/output/g: in the lines starting from the first match of /mystring/ until line 100, replace input with output
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:
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
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.
The best thing is to use a different device, period.
Since the company is lord and master over the device, in theory, they can see anything you’re doing.
Maybe not decrypting wireguard traffic in practice, but still see that you’re doing non-official things on the device that are probably not allowed. They might think you’re a whistleblower or a corporate spy or something.
I have no idea where you work, but if they install a CA they’re probably have some kind of monitoring to see what programs are installed/running.
If the company CA is all you’re worried about, running a browser that uses its own CA list should be enough.
And don’t just fork it on GitHub, if the original repo gets deleted, any forks might too.
Also do a
git clonelocally, or set up a mirror on another host.