A default gateway is a network device that forwards traffic from a Linux system to destinations outside the local network. In most home and small office networks, the default gateway...
Linux
Swap memory is a disk-based storage area that Linux can use when physical RAM is not sufficient for running processes. Before troubleshooting memory-related issues, it can be useful to verify...
A process ID (PID) is a unique number assigned by the Linux kernel to each running process. Shells such as Bash also run as processes, which means every active shell...
The cksum command calculates a checksum for a file, which helps detect accidental changes to its contents. For example, a checksum can be used to check whether a file was...
The terminal window has a defined number of rows and columns, and knowing these dimensions can be useful when working with shell scripts, command-line tools, and terminal-based interfaces. This tutorial...
When exploring a Windows executable from a Linux environment, it can be useful to determine which Dynamic Link Libraries (DLLs) the program expects to load. This information can help during...
OCRmyPDF is a command-line tool that adds an OCR text layer to scanned PDF documents, making their contents searchable and easier to process. Running OCRmyPDF from a Docker container avoids...
By default, Claude Code stores its configuration data in the ~/.claude directory. All settings, credentials, session history, and plugins are kept under this location. In some cases, keeping these files...
GitHub Linguist is a utility used to identify programming languages within a repository and calculate the percentage of code written in each language. It powers language statistics on GitHub and...
Monitoring active displays is useful for desktop management, scripting, or troubleshooting multi-monitor setups. Linux exposes monitor and connector status through the DRM (Direct Rendering Manager) interface, where each physical or...