I played a lot with Rust this month, so wasn’t working in new technologies a whole lot; I don’t have a lot of tips and tricks. I’m not sure I found anything revolutionary in Rust that is worth stating just yet.
See Package Release Notes
In case you ever want to know what has changed in a package, you can do an
apt changelog to see the release notes of a package
> apt changelog grub2 grub2 (2.04-1ubuntu26.2) focal; urgency=medium * debian/postinst.in: Avoid calling grub-install on upgrade of the grub-pc package, since we cannot be certain that it will install to the correct disk and a grub-install failure will render the system unbootable. LP: #1889556. -- Steve Langasek <email@example.com> Thu, 30 Jul 2020 17:34:25 -0700
See SSH Key algorithms
I was debugging a SSH connection problem, and had to look at what keys a client supported.
ssh -Q key will tell you all the algorithms that are supported for keys, and
ssh -Q kex will tell you all the algorithms that are supported for key exchange.
Watch a command
If you want a command to run every so often, you can do it with the
watch command. For instance, if you are tracking your temperature of your processors:
watch sensors --farenheit