How to find the hardware information of a Linux system

Use lscpu for CPU details, free -h for RAM, lsblk and df -h for storage, ip link for network interfaces, and sudo lshw for a full hardware overview; most tools are pre-installed or available via package manager.

To find hardware information on a Linux system, you can use built-in command-line tools that provide detailed insights about your CPU, memory, disks, network interfaces, and other components. Here’s how to gather key hardware details efficiently.

Check CPU Information

The CPU details are available through the /proc/cpuinfo file or dedicated commands.

• cat /proc/cpuinfo – Shows model name, cores, speed, and cache info.
• lscpu – Provides a summarized view of CPU architecture, threads, and topology.

View Memory (RAM) Details

To check installed RAM and usage:

• cat /proc/meminfo | grep MemTotal – Displays total physical memory.
• free -h – Shows memory usage in human-readable format.

List Storage Devices and Partitions

Find information about hard drives, SSDs, and partitions:

• lsblk – Lists block devices (disks and partitions) in a tree format.
• fdisk -l – Requires sudo; shows partition tables for all disks.
• df -h – Displays disk space usage across mounted filesystems.

Get System and Motherboard Info

Retrieve model, BIOS, and motherboard details:

• sudo dmidecode -t system – Shows manufacturer, product name, and serial number.
• sudo dmidecode -t baseboard – Gives motherboard information.

Detect Network Hardware

To list network interfaces and their properties:

• ip link or ls /sys/class/net – Shows all network interfaces.
• lshw -class network – Provides detailed NIC (Network Interface Card) info.

Use lshw for Comprehensive Overview

lshw is a powerful tool that generates a full hardware profile.

• sudo lshw – Outputs complete hardware tree.
• sudo lshw -short – Displays concise summary.
• sudo lshw -html > hardware.html – Exports report to HTML for easier viewing.

Most of these commands work out of the box on common Linux distributions. Tools like lshw, dmidecode, and lsblk may require installation via your package manager if not present (e.g., apt install lshw on Debian/Ubuntu).

Basically just run the right command for each component and pipe output as needed. It's straightforward once you know which tool gives what info.

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