DefederateLemmyMl

  • Gen𝕏
  • Engineer ⚙
  • Techie 💻
  • Linux user 🐧
  • Ukraine supporter 🇺🇦
  • Pro science 💉
  • Dutch speaker
  • 2 Posts
  • 459 Comments
Joined 1 year ago
cake
Cake day: August 8th, 2023

help-circle




  • DefederateLemmyMl@feddit.nltoComic Strips@lemmy.worldAir show
    link
    fedilink
    arrow-up
    9
    arrow-down
    4
    ·
    1 month ago

    I see military spending as a necessary evil, it’s like paying your insurance policy against the evils in the world. There will always be someone with a stick willing to beat someone weaker than them. So you could theoretically spend that military money on something “more useful”, but if all your friends do that as well, you won’t be able to enjoy that nice world for very long.

    Also, people usually highly overrate how much a country spends on defense and underrate how much is spent on social security. Where I live, in Belgium, with a similar military budget as Canada (in terms of % of GDP) they did a survey once and asked people to estimate how many euros out of €100 of tax money went to the military and other things. People on average thought it was €6.1 to the military and €17.4 to social security. In reality the proportions are just €1.3 to the military and €37.5 to social security.

    So I guess what I’m saying is: it’s okay to enjoy the cool noises without guilt. You paid for it, it’s necessary, and at least they’re providing people with some entertainment now.




  • A core memory of mine is getting flung off of one of these things because of the centrifugal force, falling on my back, and being unable to breathe for like 20-30 seconds … until I screamed at the top of my lungs, and things slowly returned to normal, while the teacher just went: oh you’re fine, don’t be a baby. I was 6.









  • In Unix/Linux, a removed file only disappears when the last file descriptor to it is gone. As long as the file /usr/bin/rm is still opened by a process (and it is, because it is running) it will not actually be deleted from disk from the perspective of that process.

    This also why removing a log file that’s actively being written to doesn’t clear up filesystem space, and why it’s more effective to truncate it instead. ( e.g. Run > /var/log/myhugeactivelogfile.log instead of rm /var/log/myhugeactivelogfile.log), or why Linux can upgrade a package that’s currently running and the running process will just keep chugging along as the old version, until restarted.

    Sometimes you can even use this to recover an accidentally deleted file, if it’s still held open in a process. You can go to /proc/$PID/fd, where $PID is the process ID of the process holding the file open, and find all the file descriptors it has in use, and then copy the lost content from there.