rdmsr(1)

💖 rdmsr(1) 💖

rdmsr is a General Commands Manual page, and it's giving main character energy 💅

✨ NAME ✨

okay so rdmsr is the tool for reading CPU machine specific registers (MSR) 🔥

🎀 SYNOPSIS 🎀

rdmsr [options] regno

🦋 DESCRIPTION 🦋

bestie, rdmsr is the tool you use to read a CPU's machine specific registers (MSR) 💜

😭 Important, don't skip this: if you're running a Debian kernel, you need the msr.ko kernel module loaded first. modprobe msr should do the trick 🫶 If you forget, you'll get an error saying rdmsr can't open files in /dev/cpu/... and it will be so annoying 💀

🌸 OPTIONS 🌸

• --help, -h — pull up a list of the options that are available 📜
• --version, -V — shows you the current version 🔢
• --hexadecimal, -x — output in hexadecimal, lowercase 🍓
• --capital-hex, -X — output in hexadecimal, UPPERCASE, it's giving loud 📢
• --decimal, -d — output in signed decimal 🧮
• --unsigned, -u — output in unsigned decimal 💫
• --octal, -o — output in octal 🌈
• --c-language, -c — format the output as a C language constant ✨
• --zero-pad, -0 — output leading zeroes 🧸
• --zero-pad, -0 — output leading zeroes (yep, this one is listed twice in the original page, iykyk 🙈)
• --raw, -r — output raw binary 🤖
• --all, -a — hit all the processors 👑
• --processor <#>, -p — pick a processor number, default is 0 🧚
• --bitfield h:l, -f — output only bits [h:l] 🎯

💜 SEE ALSO 💜

wrmsr(1) is your bestie for writing MSRs, so go check that one out too ✨

🫶 AUTHOR 🫶

rdmsr was written by Transmeta Corporation 🏢

This man page was contributed by Andres Salomon <dilinger@debian.org> for the Debian GNU/Linux system, but anyone else is totally allowed to use it too 🌸

Mar 2008 · rdmsr(1) · that's a wrap, bestie 💅🦋