What is the Linux command to find out hardware info?

Question

I need to find out hardware information for the below items under Linux:

• CPU (and cores)
• CPU speed
• Memory
• Hard disks
• OS version

Any advice?

Answer 1

From Linux Commands - A practical reference:

Show kernel version and system architecture

uname -a

Show name and version of distribution

head -n1 /etc/issue

Show all partitions registered on the system

cat /proc/partitions

Show RAM total seen by the system

grep MemTotal /proc/meminfo

Show CPU(s) info

grep "model name" /proc/cpuinfo

Show info about disk sda

hdparm -i /dev/sda

Answer 2

Try lshw

It will suggest you run it as root, so try

sudo lshw

Answer 3

Here is a link to various Linux commands for what you want:

http://www.cyberciti.biz/tips/linux-command-to-gathers-up-information-about-a-linux-system.html

Specifically, you're looking for commands like:

cat /proc/cpuinfo

free -m

cat /proc/version

Answer 4

Here is a list of commands to check hardware on Linux. Note that not all commands are available on all distributions. It is better to launch then as root (or via sudo) to get all the information.

Command: lscpu

• List available cpus and their caracteristics
• Not available on older distribution

Command: lshal

• Require HAL (Hardware Abstraction Layer) to be installed
• List all hardware visible by HAL

Command: lshw

• Available on Debian and Ubuntu based distributions by default
• Available in the Fedora repositories
• Uses many inputs to detect all hardware: Kernel, HAL, DMI, etc.
• As a neat ‘-html’ switch that generates hardware reports

Command: lspci

• Standard command
• List all hardware connected to the PCI bus as detected by the kernel

Command: lsusb

• Standard command
• List all hardware connected to the USB buses as detected by the kernel

Command: dmidecode

• Standard command
• Get the source information from the DMI (a kind of BIOS interface)
• List all hardware as reported by the DMI interface

Answer 5

If you want lots of information about all of the devices connected to your machine over the PCI (or PCI-Express) bus then type lspci -vvknnqq

If you want information about your disk partitioning then type sudo fdisk -l /dev/sda

Answer 6

You can also use dmidecode which will provide description of the systemâs hardware components.

Answer 7

This is a very basic Linux question which you can find by googling for answer. Type "lspci" in the terminal for hardware information.