CentOS 6
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Display Hardware Info
Display Hardware Info like follows.
[1] Install lshw
[root@dlp ~]#
yum --enablerepo=epel -y install lshw
# install from EPEL
[2] Display Hardware Info
[root@dlp ~]#

    description: Desktop Computer
    product: System Product Name
    vendor: System manufacturer
    version: System Version
    serial: System Serial Number
    width: 64 bits
    capabilities: smbios-2.7 dmi-2.7 vsyscall64 vsyscall32
    configuration: boot=normal chassis=desktop uuid=8002001E-8C00-0062-EADD-08606E4529CE
       description: Motherboard
       product: P8C WS
       vendor: ASUSTeK COMPUTER INC.
       physical id: 0
       version: Rev 1.xx
       serial: 121003578100482
       slot: To be filled by O.E.M.

# generate HTML

[root@dlp ~]#
lshw -html > hwinfo.html
# generate XML

[root@dlp ~]#
lshw -xml > hwinfo.xml

[3] There is a GUI tool for lshw if the machine is Desktop Environment.
[root@dlp ~]#
yum --enablerepo=epel -y install lshw-gui
# install from EPEL
  Start "Hardware Lister" to display Hardware Info.