dmidecode

% dmidecode -t
dmidecode: option requires an argument -- 't'
Type number or keyword expected
Valid type keywords are:
  bios
  system
  baseboard
  chassis
  processor
  memory
  cache
  connector
  slot

% dmidecode -s
dmidecode: option requires an argument -- 's'
String keyword expected
Valid string keywords are:
  bios-vendor
  bios-version
  bios-release-date
  bios-revision
  firmware-revision
  system-manufacturer
  system-product-name
  system-version
  system-serial-number
  system-uuid
  system-sku-number
  system-family
  baseboard-manufacturer
  baseboard-product-name
  baseboard-version
  baseboard-serial-number
  baseboard-asset-tag
  chassis-manufacturer
  chassis-type
  chassis-version
  chassis-serial-number
  chassis-asset-tag
  processor-family
  processor-manufacturer
  processor-version
  processor-frequency

% dmidecode -t system
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.8 present.

Handle 0x0001, DMI type 1, 27 bytes
System Information
        Manufacturer: FUJITSU
        Product Name: PRIMERGY RX1330 M1
        Version: GS01
        Serial Number: YLWT011379
        UUID: 1ab2345c-67ef-890a-8b4b-987654249a04
        Wake-up Type: PCI PME#
        SKU Number: ABN:DEAD-BEEF-12
        Family: SERVER

Handle 0x0019, DMI type 12, 5 bytes
System Configuration Options
        Option 1: J1-2: Password Skip active
        Option 2: J5-6: Recovery BIOS active

Handle 0x001B, DMI type 32, 20 bytes
System Boot Information
        Status: No errors detected

% dmidecode -t processor | egrep "Family|Manufacturer|Version|Max Speed|Core Count|Thread Count"
        Family: Xeon
        Manufacturer: Intel
        Signature: Type 0, Family 6, Model 60, Stepping 3
        Version: Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz
        Max Speed: 3800 MHz
        Core Count: 4
        Thread Count: 4

% dmidecode -t memory | egrep "Maximum Capacity|Number Of Devices|Size|Type:" | egrep -v "No Module|Unknown|None"
        Error Correction Type: Single-bit ECC
        Maximum Capacity: 32 GB
        Number Of Devices: 4
        Size: 8 GB
        Type: DDR3
        Size: 8 GB
        Type: DDR3