How to check system information in Linux

Run command to get system related information

# dmidecode -t

Valid type keywords are:

  bios

  system

  baseboard

  chassis

  processor

  memory

  cache

  connector

  slot

Now you can check information whatever you wand from below command

# dmidecode -t "bios"

for Ubuntu

$sudo dmidecode -t "bios"

Output

# dmidecode 2.11

SMBIOS 2.4 present.

Handle 0x0000, DMI type 0, 24 bytes

BIOS Information

        Vendor: Phoenix Technologies LTD

        Version: 6.00

        Release Date: 05/20/2014

        Address: 0xE9A50

        Runtime Size: 91568 bytes

        ROM Size: 64 kB

        Characteristics:

                ISA is supported

                PCI is supported

                PC Card (PCMCIA) is supported

                PNP is supported

                APM is supported

                BIOS is upgradeable

                BIOS shadowing is allowed

                ESCD support is available

                Boot from CD is supported

                Selectable boot is supported

                EDD is supported

                Print screen service is supported (int 5h)

                8042 keyboard services are supported (int 9h)

                Serial services are supported (int 14h)

                Printer services are supported (int 17h)

                CGA/mono video services are supported (int 10h)

                ACPI is supported

                Smart battery is supported

                BIOS boot specification is supported

                Function key-initiated network boot is supported

                Targeted content distribution is supported

        BIOS Revision: 4.6

        Firmware Revision: 0.0

Same way you can check information of Memory, processor or for other equipment.

# dmidecode -t "memory"