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Linux Modules I will explore what a Linux module is, the differences between system modules and user modules, and some of the other commands related to Linux module configurations and options. Examples, scenarios and EXAM AND ANSWERS at end What is a Linux Module? In Linux, a module is a small piece of code that can be dynamically loaded and unloaded from the running kernel. Modules are used to extend the functionality of the kernel without the need to recompile and rebuild the entire kernel. The modprobe command is used to manage the loading and unloading of these kernel modules. When you run modprobe <module_name>, it will search for the module file in the /lib/modules directory, load the module into the kernel, and set up any dependencies that the module may have. Modules can also be loaded automatically during the boot process by configuring the /etc/modules file or by creating a custom script in the /etc/modules-load.d/ directory. Modules are used to add supp...

  LPI E - Data Manipulation 3.2 Searching and Extracting Data from Files Part 1 of 2 Part 2:   Regular Expressions (regex) In this blog post, we will explore some of the most common commands that are used to search and extract data from files in Linux. Specifically, we will be discussing   grep less cat head tail sort cut wc The blog will finish by showing how to use the data manipulation tools for I/O Redirection and giving several examples for Regular Expressions (regex) to use when analyzing text within the Linux Terminal. grep Command The grep command is used to search for patterns in a file or set of files. The syntax for using grep is as follows: $ grep pattern filename For example, if we want to search for the word "apple" in a file called "fruits.txt", we can use the following command: $ grep apple fruits.txt This will display all the lines in the file that contain the word "apple". The grep command is also capable of using regular expressions to s...