web development and system administration of Linux
Measuring HTTP Request Time with cURL in Linux When testing web application performance, one of the most useful tools at your disposal is curl. This command-line tool allows developers to measure request times, analyze response latency, and debug performance bottlenecks efficiently. In this post, we’ll explore how you can use curl to measure HTTP request … Continue reading Measuring HTTP Request Time with cURL in Linux
Ignoring Local Changes to Files in Git: The Power of –assume-unchanged Introduction As developers, we often work on projects where certain files, like composer.lock, are frequently updated locally but should not be committed to the repository. However, adding these files to .gitignore might not be the best approach, especially if they need to be tracked … Continue reading Ignoring Local Changes to Files in Git
Introduction Performance testing is an essential part of web application development. Apache Benchmark (ab) is a popular tool for load testing APIs and web applications. However, when working with multiple test results in the form of screenshots, analyzing them manually can be cumbersome. In this article, we will demonstrate how to extract performance data from … Continue reading Analyzing Apache Benchmark (ab) Test Results Using Python and Tesseract OCR
When working with folders that contain a huge number of files, counting them efficiently becomes crucial, especially in high-performance or automated environments. In this guide, we’ll explore different ways to count files in a directory using Linux command-line tools and Perl scripting. đź“Ś Method 1: Using ls and wc (Fast and Simple) If you’re dealing … Continue reading How to Count the Number of Files in a Folder Efficiently (Even for Large Directories)
Ubuntu 24.04 is a powerful and user-friendly Linux distribution, but new users often wonder how to install software efficiently. In this guide, we’ll explore multiple ways to install applications, from traditional package managers to direct .deb installations. 1. Installing Software via APT (Recommended) APT (Advanced Package Tool) is the default package manager in Ubuntu. It’s … Continue reading Ultimate Guide to Installing Software on Ubuntu 24.04
When working with PostgreSQL, it’s often necessary to check the version of the database server to ensure compatibility with features, extensions, and security updates. Here’s a quick guide on how to retrieve the PostgreSQL version using SQL queries. Using version() Function The simplest way to get detailed PostgreSQL version information is by running the following … Continue reading How to Get PostgreSQL Version Using SQL Query
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Introduction When working with JWT authentication in Laravel, you may encounter the error: openssl_verify(): Supplied key param cannot be coerced into a public key This typically happens when verifying an RS256-signed JWT with an incorrect or improperly formatted public key. In this guide, we’ll walk through the steps to extract and use the correct RSA … Continue reading Extracting and Using an RSA Public Key for JWT Verification in Laravel
Linux find: Find Files in a Folder That Changed Today The find command in Linux is a powerful tool for searching files and directories based on various criteria, including modification time. If you need to find files in a specific folder that were modified today, you can use the -mtime option. Basic Command To list … Continue reading Linux find: Find Files in a Folder That Changed Today
Checking PHP Code and Laravel Migrations for PostgreSQL database version upgrade from 14 to 17 Compatibility Upgrading your PostgreSQL database from version 14 to 17 is an excellent way to take advantage of new features and performance improvements. However, ensuring that your Laravel application’s PHP code and migrations are compatible with both versions is critical … Continue reading Analyze Laravel code for upgrading PostgreSQL database version
