Piero Bosio Social Web Site Personale

There are 141 tips in the FreeBSD tips file that is displayed by fortune every time you log into a FreeBSD system. root@geonosis:~ # grep -E '^%' /usr/share/games/fortune/freebsd-tips | wc -l 141 Most of the time, I know the tips very well. Sometime, however, I do learn a new thing.Today I Learned thatTo set a quota of 10 GB for the user named foo on a ZFS dataset, run the following command: # zfs set userquota@foo=10G pool/home/foo The zfs userspace command can display the quota and current space usage: # zfs userspace pool/home/foo To unset a quota, assign "none" as the value. -- Benedict Reuschling <bcr@FreeBSD.org> This is actually two tips in one. First, is the userquota in a filesystem, and the second one is how to see these quotas, which I had no idea about.So I tried running it on one of my larger systemsroot@geonosis:~ # zfs list genomic/abi/proj/cfdna NAME USED AVAIL REFER MOUNTPOINT genomic/abi/proj/cfdna 39.9T 7.10T 39.9T /mnt/proj/cfdna root@geonosis:~ # zfs userspace -S used genomic/abi/proj/cfdna TYPE NAME USED QUOTA OBJUSED OBJQUOTA POSIX User 10039 22.1T none 78.6K none POSIX User 10017 6.64T none 102K none POSIX User 10048 6.35T none 110K none POSIX User 10052 4.51T none 7.11K none POSIX User 10011 326G none 1.34K none POSIX User 10065 1.42G none 14.7K none POSIX User 10012 51.3M none 1.77K none POSIX User 10001 125K none 13 none POSIX User 10018 38.1K none 3 none POSIX User 10031 1.50K none 3 none POSIX User root 512B none 1 none I don’t integrate our storage systems with LDAP, instead we just use the UIDs in permissions, but I can check who that is on another system.antranigv@ssh-02:~$ id -nu 10039 anahit Time to inform anahit that she has the record for most used storage in our largest project 🙂That’s all folks…

The satellites of Neptune are very strange. Apparently Neptune's original moon system was completely upended, nearly obliterated, by its capture of Triton from the Kuiper belt at some point in the past. All its other remaining moons are much smaller.Triton is very large, compared with Neptune. (Its size relative to its primary is exceeded only by Luna.) In fact it is larger than Pluto. Triton's orbit is nearly circular, highly inclined and, uniquely among the large moons of the Solar System, retrograde.When I was a kid only two moons of Neptune were known, Triton and Nereid. It turns out that Nereeid is only _third_-largest. The second-largest, Proteus, wasn't discovered until 1989. I guess this is mainly because it orbits much closer to Neptune than Nereid does. (Nereid's orbit is highly eccentric.) It's also a little less bright.#astronomy #neptune #triton #til

@GustavinoBevilacqua ma per il mal di mare? 😆1) fantastico2) non sapevo, ma sicuramente avranno usato qualcos'altro...In compenso ora mi sto rilassando ascoltando Dramamine dei Modest Mouse...https://www.youtube.com/watch?v=tvqlt7OWTOk(Uso il link YT perché li vedo di newpipe)

TIL about the "Batman effect": In an experiment, a woman appearing pregnant boarded a train. In some trials, another experimenter dressed as Batman also entered. Passengers were far more likely to offer the woman their seat when Batman was present—67.2% compared with 37.7%.https://www.nature.com/articles/s44184-025-00171-5#til #todayilearnedhttps://www.reddit.com/r/todayilearned/comments/1v1os6h/til_about_the_batman_effect_in_an_experiment_a/

Today I learned #TIL: "How to make a necklace for holding my glasses"👉 https://foosel.net/til/2026-06-24-how-to-make-a-necklace-for-holding-my-glasses/

@uint8_t I'm not from the US, so the math seems a bit more complicated. World birth rate is 140million/year, and there are about 20% of people understanding english in the world. So I suppose that makes me I'm one of the lucky 80000.

@mcfly I remember the ads on tv when it was introduced in Italy: I was young enough that I don't remember the details of the consequences (but then, at home we had an electric range already), but @diegor does, so it wasn't *that long* ago(either that, or we're old :D )

I use FreeBSD jails more way over a decade now. Today I learned, that I can simply do “jexec $jail_name” without a parameter and get a sh shell in the jail. You don’t actually need to put “sh” at the end of the command 🤯😂 #freebsd #jails #til

#TIL che il film "un giorno di ordinaria follia" in realtà si chiamava "falling down".Ok, il titolo italiano non c'entra una mazza, ma è un grande titolo.#film

@adhdeanasl @glasspusher My pleasure - I am so glad it has resonated with so many people!I thank *you* for boosting! 🙏

TIL about the Apollo Affair, where the US lost 200+ Pounds of highly enriched, weapons grade Uraniumhttps://en.wikipedia.org/wiki/Apollo_affair#til #todayilearnedhttps://www.reddit.com/r/todayilearned/comments/1sjpkcn/til_about_the_apollo_affair_where_the_us_lost_200/

#TIL https://allorigins.win/a service to access web pages via js without CORS issues.#webdev #coding

#TIL Shakespeare coined the sentence "The first thing we do, we kill all the lawyers"https://en.wikipedia.org/wiki/Let%27s_kill_all_the_lawyers