Important Commands to view Hardware and System Info in Linux

This post is about, Important Commands to view Hardware and System Info in Linux

View Linux System Information

• Use uname command to know the system name.
• View all information by adding -a to uname command
• Use -r added to uname to view the kernel release
• View the network hostname by adding -n option to uname command
• -v option for kernel-version
• To show hardware name, use -m

The screenshot below shows an examples for all these options with uname command

View CPU Information

• Use lscpu command to collect info about CPU as shown below.

lscpu

Show memory information

• Use free command to collect and print information about memory, buffer, cache and swap.

free -m   #m option to view the memory size and its info in MB
free -g   #g option to view the memory size and its info in GB
free -mh  #mh option to simplify it to be read with human readable

View Block Device Information

• Use lsblk to show storage devices such as hard disks, flash drives (to list blocks)

lsblk

• Also to view all block devices use the -a option with lsblk.

lsblk -a

Show USB Information

•  To collect information about USB , use lsusb command to list usb devices

lsusb

View SCSI Devices Information

• List all SCSI devices using lsscsi command as shown below

lsscsi

• Also use -s option with lsscsi command to view devices sizes

Show PCI Devices Information

• Print and collect information about PCI devices.

lspci

• To produce information about each connected device, use -v option as shown below

• Use the -t option with lspci command to produce output in a tree format.

Show System Hardware Information

• Also to collect information about your Linux system hardware, use lshw command as shown below.

lshw

• Show a summary of your hardware information using the option -short with lshw command

lshw -short

• Also you can an html file as an output for your collected info, you can do this with using the command below then accessing the file via a web browser.

sudo lshw -html > lshw.html

Show Linux File System Information

• Show partition information by using fdisk command with option -l as shown below

sudo fdisk -l

View Info about Hardware Components

You can use dmidecode command to collect information about hardware components.

dmidecode is a free userspace command-line utility for Linux that can parse the SMBIOS data. The name dmidecode is derived from Desktop Management Interface, a related standard with which dmidecode originally interfaced. 

• Print info about system hardware components as follows:

sudo dmidecode -t system

• View info about CPU

sudo dmidecode -t processor

• Show info about memory

sudo dmidecode -t memory

• Show info about BIOS seetings and confs.

sudo dmidecode -t bios

-t refers to the type of the hardware component.

Conclusion

That’s it

In this article, we illustrated how to collect and view information about your system and its Hardware components.

I hope this guide was useful

thanks.