Linux Flashcards
What is a pseudo file system
a hierarchical interface to non-file objects that appear as if they were regular files in the tree of a disk-based or long-term-storage file system.
What are the two primary psuedo file systems in linux
/proc and /sys
Describe the /proc directory
Contains inforamtion about the processes running on a system.
Describe the /sys directory
Contains information about the systems hardware and kernel modules. no processes information listed here
Describe man proc command
Shows local documentation on the /proc psuedo file system
What is the kernel?
The core framework of the operating system, Handles all memory management and hardware interactions
What does the command uname do?
Displays info about the currently running kernel
What does the command lsmod do?
Displays a listing of all currently loaded modules
What doe the command modprobe do?
Dynamically loads and unload kernel modules at runtime
What is udev?
The device manager for the Linux Kernel, links info on system hardware to /dev
What is dbus
Sends data messages between apps. A conduit of info about what is going on in the system, udev utilizes dbus to notify users and the system when new hardware is attached
What does the commmand lspci do
Displays info on PCI devices attached
What does the command lsusb do
Displays info on processors on a system
What does the command lsblk do?
Displays info on all block devices on a system
