All About Linux.

Running a C program on Linux starts by turning its source code into an executable. GCC is a compiler that processes C source code and creates that executable. This article explains what compilation does and shows how to build and run a C program with GCC. TL;DR: Compile and run C on Linux Use GCC

Checking a Linux filesystem starts with identifying the partition to examine. The fsck command selects a checker for the filesystem type, which inspects filesystem structures and can offer repairs. I’ll show how to run fsck on an unmounted partition and explain how to read the checker’s exit status. TL;DR: Run fsck on an unmounted filesystem

To read system activity in Linux, use vmstat to compare repeated reports. The command presents process queues and system activity in a compact report. I’ll show how to collect and interpret vmstat samples, then explain the limits of its output. TL;DR: What vmstat Shows in Linux Run vmstat -y 1 2 for two one-second samples

To find out which Linux kernel is running, check the release identifier printed by uname -r. The Linux kernel is the core software layer that manages hardware resources and provides services that programs can request. This article explains what the kernel handles and shows how to check the release of the one currently running. TL;DR:

A process listing can show a TTY value, and knowing what it identifies helps put the process in context. The tty command checks whether the input a command reads is connected to a terminal and prints the device path when it is. This article explains what a process’s terminal means, then walks through the tty

Changing several filenames in one operation starts with choosing which files to include and what their new names should be. A Bash loop with mv applies a naming rule to each selected path, while other Linux tools support substitutions or visual review. This article explains batch renaming and shows how to select files and apply

Getting the Notepad++ editor onto a Linux system means picking an installation route. The original Windows app runs through Wine in its Snap package, and a separate fork is built for Linux. I’ll cover the Snap installation and the native fork, including the limits to check before choosing either one. TL;DR To run the original