GitHub - u-root/u-root: A fully Go userland with Linux bootloaders!
https://github.com/u-root/u-root
u-root Description Usage Extra Files Init and Uinit Cross Compilation (targeting different architectures and OSes) Testing in QEMU Framebuffer Entropy / Random Number Generator SystemBoot...
What does mysql -u root -p do? - Stack Overflow
https://stackoverflow.com/questions/43276464/what-does-mysql-u-root-p-do
mysql -u root -p means, that you trying to connect to MySQL shell with parameters - -u parameter specified MySQL user name. -u, --user=name User for login if not current user.
u-root/README.md at master · u-root/u-root · GitHub
https://github.com/u-root/u-root/blob/master/README.md
A fully Go userland with Linux bootloaders! u-root can create a one-binary root file system (initramfs) containing a busybox-like set of tools written in Go. - u-root/u-root.