Dmidecode – Command to Get Hardware Info in Linux

In Linux, we use the dmidecode command to get information on the system's hardware components.

• DMI stands for Desktop Management Interface.
• We can use the dmidecode command in Linux to get hardware information, such as motherboard model, CPU information, memory information, and BIOS.
• The most important command options are --type and -s.
• The dmidecode requires root (sudo) privileges to run.

If you run the command without any argument, it will display a table containing information about the system's hardware components.

dmidecode

You can use the --type argument to get information on a specific hardware component.

Type Can Be a Number or Keyword

For example, 0 represents BIOS, 2 is the motherboard, and 4 is the CPU.

For example, to get CPU info, use either 4 or processor as the --type value:

dmidecode --type 4
dmidecode --type processor

You can refer to the man page to find all valid types and keywords.

man dmidecode

Short Output

We can use the -s option to display a short output. For example, the following command shows the CPU model without other information.

dmidecode -s processor-version

The -s option accepts the following keywords.

You can run dmidecode -s to display the above table while working on the Linux command-line interface.

Examples

Get motherboard information:

dmidecode --type baseboard

Get BIOS information:

dmidecode --type bios

Get CPU information:

dmidecode --type processor

Check CPU Version:

dmidecode -s processor-version

Check the frequency of the CPU:

dmidecode -s processor-frequency

Get memory information:

dmidecode --type memory