i7z_rw_registers command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

i7z_rw_registers: command not found

or when using sudo you get the following error message

sudo: i7z_rw_registers: command not found

Solutions to i7z_rw_registers: command not found

How To Fix i7z_rw_registers: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu i7z_rw_registers is provided by i7z package.

i7z is:

i7z reports Intel Core i7, i5, i3 CPU information about Turbo Boost, frequencies, multipliers, … and comes top-like display showing per core the current frequency, temperature and times spent in the C0/C1/C3/C6/C7 states.

There is also an i7z_rw_registers script that allows toggling Turbo mode or set multipliers.

To fix this problem, we can install more using the command below.

sudo apt-get -y install i7z

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install i7z.

sudo apt -y install i7z

Or if you have aptitude installed you can use the following command.

sudo aptitude install i7z

Summary

In this tutorial we learn how to fix i7z_rw_registers command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.