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

submitted 3 days ago* (last edited 2 days ago) by A_norny_mousse@feddit.org to c/linux@programming.dev

35 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.

❤️🐧

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[–] notfromhere@lemmy.ml 6 points 3 days ago (1 children)

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

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

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