Linux shell script Tips Mastering Linux shell script Shebang Line To specify the script interpreter: Example: #!/bin/bash at the top of your script tells the system to execute the script with bash. Command Effect #!/bin/bash Specifies bash as the interpreter for the script Variable Declaration To declare a variable: Example: myVar=”Hello World” assigns the string …

In Linux, grep is a powerful text search tool that helps you find specific strings within files. Its basic syntax is grep [options] ‘search_string’ filename. For example, if you want to find all lines containing the word “error” in a file named example.txt, you can use the following command: grep ‘error’ example.txt You can also …

Linux kernel 6.11 has officially been released, as announced by Linus Torvalds on September 15, 2024. This update introduces a variety of new features, hardware support enhancements, and performance improvements. So, what does this mean for your system? Key Features and Improvements Hardware Support New Driver Subsystems Improved drivers for Bluetooth/WLAN chips on Qualcomm platforms …

OpenAI has recently launched the o1 model, a groundbreaking development in artificial intelligence that brings substantial enhancements in reasoning capabilities. This new model series, which includes o1-preview and o1-mini, is engineered to tackle complex tasks, especially in STEM (science, technology, engineering, and mathematics) fields, by taking extra time to “think” before providing responses. This evolution …

For Linux administrators, checking the status of remote ports is a routine yet essential task. 🔍 In our quest to streamline this process, we’ve tested six different methods to assess remote port status. Along the way, we uncovered two unexpected techniques that offer remarkable benefits. Curious about what we found? Dive in to discover how …

If you’re dealing with permission issues on your server and come across advice suggesting you use chmod 777 on your directory, it’s crucial to understand what this command does and why it’s generally unsafe. Here’s a simplified explanation of Linux file permissions and why you should avoid using chmod 777. We also created an infographic …

In the post-AI era, new AI innovations frequently capture the spotlight. Recently, Cursor AI has become the latest sensation in the tech world. 🛠️What is Cursor AI? Cursor is an advanced AI coding tool that integrates cutting-edge models like Claude 3.5 Sonnet and GPT-4o. It combines: Development Environment: A practical workspace for writing and editing code. …

Learning SQL can often feel overwhelming due to its extensive range of commands, functions, and syntax rules. To simplify this process and make SQL more accessible, we’ve created a comprehensive chart designed to streamline your learning experience. This chart serves as an all-in-one reference tool, helping you grasp and apply SQL concepts more effectively. With …

When I first began managing Linux servers, one of the most perplexing metrics I encountered was the load average. At first glance, the numbers seemed abstract and elusive — what did a load average of 2.5 or 5.0 actually mean for system performance? I vividly remember the first time I was faced with a server …

When I first started working with Linux servers, managing time synchronization seemed like a daunting task. My team had always relied on the traditional ntpd service for Network Time Protocol (NTP), and it worked well enough. But when Red Hat Enterprise Linux (RHEL) 8 came around and the focus shifted to chronyd from the Chrony …