In this article we’ll see how we can use Dmidecode command to retrieve hardware information of any Linux system. Suppose if we want to upgrade a system we need to gather information like Memory, BIOS and CPU etc. With help of Dmidecode command we will come to know the details without opening system chasis. Dmidecode command works for RHEL/CentOS/Fedora/Ubuntu Linux.

Dmidecode tool read DMI (some say SMBIOS) table to fetch data and displays useful system informations like hardware details, serial numbers and BIOS version, Processor etc. in human readable format. You may require root priviledge to execute dmidecode command.
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