Manage Devices Linux 1.11

What is the /proc directory in Linux?

A virtual filesystem that provides system and process information in text files.

How do you view processor info in Linux?

Use less /proc/cpuinfo to see details like cores, cache size, and clock speed.

What are interrupts in Linux?

Events that trigger the CPU to handle tasks; view them with cat /proc/interrupts.

Why are interrupts useful?

They let the CPU respond immediately to important tasks, improving performance.

What are Linux kernel modules?

Drivers in Linux; loaded software that allows hardware to function.

How do you view loaded kernel modules?

Run lsmod to list all currently loaded kernel modules.

How do you unload a kernel module?

Use modprobe -r modulename to remove a loaded kernel module.

What is hwinfo used for?

A command-line tool that combines hardware info from multiple sources into one detailed view.

How do you install hwinfo on Ubuntu?

Run sudo apt install hwinfo.

How do you view hwinfo output page by page?

Use hwinfo | more to scroll one page at a time.

How can you save hwinfo output to a file?

Run hwinfo > /home/username/Documents/hwinfo.txt to save it.

Why save hwinfo output to a file?

To send hardware info to tech support or for documentation.

What GUI method exists in Ubuntu to view hardware info?

Go to Settings > About for basic system info.

Why use less instead of cat with /proc files?

Because less handles large files more cleanly and scrolls page by page.

What kinds of hardware does hwinfo detect?

CPU, PCI devices, video cards, network cards, sound cards, and onboard components.

What is the purpose of the Settings menu in Ubuntu for hardware?

To configure general system features like Network, Displays, Bluetooth, and view basic system info.