Linux

8456 readers

268 users here now

A community for everything relating to the GNU/Linux operating system (except the memes!)

Also, check out:

Original icon base courtesy of lewing@isc.tamu.edu and The GIMP

founded 2 years ago

MODERATORS

Ategon@programming.dev

anzo@programming.dev

dwraf_of_ignorance@programming.dev

107

cat /proc/sys/kernel/random/uuid [I ❤️ Linux] (feddit.org)

submitted 1 month ago* (last edited 1 month ago) by A_norny_mousse@feddit.org to c/linux@programming.dev

36 comments fedilink hide all child comments

That's all. I just found this in a random script. Generates a random UUID every time it's called. I didn't know.

Of course I can also use uuidgen or pipe /dev/(u)random into something to get a random alphanumeric string - but this is built right into the kernel!

In /proc/sys/kernel/random/, there's also boot_id which ~~seems to do the same~~ is static, and some tweakable parameters.

❤️🐧

you are viewing a single comment's thread
view the rest of the comments

[–] notfromhere@lemmy.ml 6 points 1 month ago (1 children)

I’ve used this in some bash scripts, very useful!

[–] A_norny_mousse@feddit.org 2 points 1 month ago* (last edited 1 month ago)

That's what I mean. No more searching for ways to create shell-friendly randomness ($RANDOM does not always cut it).