To read the CPU temperature, voltage, and fan speed on a Linux system using the lm-sensors utility, you need to first install the lm-sensors package.
To install lm-sensors, you can use your system's package manager. For example, on a Debian or Ubuntu system, you can use the apt-get command:
sudo apt-get install lm-sensors
On a CentOS or Fedora system, you can use the yum command:
sudo yum install lm-sensors
Once the lm-sensors package is installed, you can use the sensors command to read the CPU temperature, voltage, and fan speed.
For example, to read the temperature of the CPU, you can use the following command:
sensors | grep "Core"
This will show the temperature of each CPU core.
To read the voltage of the CPU, you can use the following command:
sensors | grep "VCore"
To read the fan speed of the CPU, you can use the following command:
sensors | grep "fan"
Note: The exact names of the sensors and the output format may vary depending on your system's hardware and the lm-sensors configuration. You can use the sensors-detect command to detect the available sensors and configure lm-sensors accordingly.