How to call JavaScript function from PHP

PHP and JavaScript work together to create interactive and dynamic websites. PHP runs on the server, handling data processing and generating HTML. JavaScript runs in the browser, handling user interactions and real-time updates. While PHP can’t call JavaScript functions directly (since they work in different environments), it can generate JavaScript code that the browser will … Read more

How to Delete/Drop a Constraint In PostgresSQL

postgresql active queries

This article will show you how to drop a constraint, such as a foreign key constraint, on a PostgresSQL database. There are several different types of constraints and we’ll show you examples of each. Sure, here are the same instructions with headers and sub-headers: Dropping a PRIMARY KEY Constraint in PostgreSQL To remove a primary … Read more

How to compare to files in Linux in 5 ways

compare 2 files in Linux

Comparing two files in Linux is a common task, especially when managing configurations or tracking code changes. Let’s explore some straightforward methods to help you spot differences between files. Using the diff Command The diff command is a staple for comparing files in Linux. It highlights line-by-line differences, making it easy to identify changes. Basic … Read more

Tutorial – How to Open & Extract a .tar.bz2 File

tar bz2 file compress

When you encounter a tar.bz2 file, it might seem like a cryptic piece of technology reserved for advanced users. But don’t worry—it’s simpler than it looks. The tar.bz2 file format is a combination of two processes: creating a tar archive and compressing it with bzip2. This format is widely used in Unix/Linux systems to bundle … Read more

VMware Server Login Explained: Tips, Troubleshooting, and Best Practices

vmware login

If you’ve ever worked with VMware, you know how important the VMware Server Login process is for keeping your virtualized environment running smoothly. It’s not just about logging in; it’s about safeguarding your network, managing resources, and ensuring everything stays secure. Whether you’re running a few virtual machines or managing an entire data center, getting … Read more

How to download torrent (BitTorrent) files using uTorrent

download uTorrent

Downloading torrents is a straightforward process once you understand the basics. uTorrent, one of the most popular torrent clients, makes it simple to grab your desired files while managing bandwidth and ensuring quick downloads. This guide will walk you through how to download torrent files using uTorrent. What You Need Before Getting Started To download … Read more

How to install a FTP server for Linux in 30 seconds

ftp servers for linux

If you’re looking to move files quickly and efficiently between systems, setting up an FTP server for Linux is a solid option. FTP (File Transfer Protocol) is reliable, widely used, and pretty straightforward to get up and running on Linux. Whether you’re managing a personal server or handling company data, an FTP server is a … Read more

Linux 101: Append String/Data To A File

rpm dependencies, linux, ubuntu

Appending data to files is a common task in Linux, whether you’re updating logs, adding configuration settings, or combining file contents. Linux provides several straightforward methods to append text or other data to an existing file. This guide will cover different tools and commands you can use for this purpose. Using the >> Operator for … Read more

How to copy files in PHP using SCP – Step-by-Step

php copy files

When it comes to moving files securely between servers, using SCP in PHP is a solid choice. This method uses the Secure Copy Protocol (SCP) to transfer files over SSH, ensuring everything stays safe during the process. In this guide, I’ll show you how to set it up and use it, so you can get … Read more

Beginner’s guide to RPM installation on Linux

install rpm linux, ubuntu

This guide will take you through the basics of RPM and show you how to install it on different Linux server distributions: Ubuntu, CentOS, Fedora, and Red Hat Enterprise Linux (RHEL). In the world of Linux, mastering the art of installing, upgrading, and removing software packages is crucial. These tasks are generally handled by what’s … Read more

How to List All Installed RPM Packages in Linux

bash, command-line, linux

This article will show you to how to list of all installed RPM packages on Linux distributions like Ubuntu, CentOS, RHEL, and Fedora. We’ll show you how to solve this using the rpm and dpkg commands. RPM (Red Hat Package Manager) is used by distributions such as CentOS, RHEL, and Fedora for package management. Ubuntu, … Read more

How to create/remove symlinks (symbolic link) in Linux

rpm dependencies, linux, ubuntu

This guide explains how to create and delete symbolic links in Linux systems like Ubuntu and Red Hat. A symbolic link points to another file, saving disk space since it avoids duplicating data. What Is a Symbolic Link? A symbolic link, or symlink, is a Linux file that points to another file or directory. Unlike … Read more

8 Simple ways to check the amount of physical memory (RAM) in Linux

linux how much memory

If you’re using Linux and need to check your RAM size, there are plenty of simple ways to get the information. Whether you’re troubleshooting performance issues, checking compatibility for new software, or just curious about your hardware, these methods will help you out. In this guide, we’ll walk through several ways to check your system’s … Read more

Find the CPU (processor) speed and model under Linux

linux cpu speed model

Understanding your CPU’s speed and model is crucial for optimizing performance, troubleshooting, or even upgrading your system. If you are a Linux user, there are several efficient methods to check your processor’s details directly from the command line. This guide will walk you through all the ways to find CPU information in Linux. Why Check … Read more

How to Use Tar to Archive and Extract Files in Linux

how to append files in linux

If you’ve ever worked with Linux, you’ve probably come across tar archives at some point. They’re super handy for bundling and compressing files, but if you’re new to Linux or just need a refresher, figuring out how to extract those files can feel a bit daunting. Don’t worry—I’ve got you covered! In this guide, I’ll … Read more

Linux – How to Find the Number of Files in a Directory

number of files, linux, ubuntu, red hat

Introduction Counting files in a directory is a routine task for Linux users, especially system administrators and developers. Whether you’re managing backups, monitoring disk usage, or organizing files, knowing how to efficiently count files can save time and reduce errors. There are various tools and commands available in Linux for counting files, from the basic … Read more

Shell command to bulk change file extensions on Linux

Linux Shell Prompt

This article will explain how to change the file extension for all files in a directory in Linux using a simple bash shell command. While you are on a learning path, be sure to checkout other useful Linux articles such as Insert/Add String to Beginning of a File and Linux – How to find the number … Read more

How to Run a Script at Startup in Linux: Guide for Ubuntu, CentOS, and Debian

linux, shell bash, ubuntu

Running scripts automatically at startup can streamline tasks like launching applications, managing services, or performing system maintenance. This guide provides step-by-step instructions for setting up startup scripts on Ubuntu, CentOS, and Debian. Why Run Scripts at Startup? Automating scripts to execute during system startup can: Methods to Run Scripts at Startup Different Linux distributions offer … Read more

Find PostgreSQL database size using SQL ‘Select’

postgresql active queries

PostgreSQL is one of the most powerful and widely used relational database management systems (RDBMS). Managing database size effectively is crucial to ensure performance, scalability, and efficient resource utilization. Understanding how to measure and monitor database size is an essential skill for database administrators and developers. This article explores how to find the PostgreSQL database … Read more

Mount ISO Files on Linux Like a Pro: A Beginner-Friendly Guide

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Ever downloaded a Linux installation image and wondered what to do with it? That’s where mounting ISO files on Linux comes in. An ISO file is a snapshot of a disk, like a CD or DVD, packaged into a single file. By mounting it, you can access its contents without needing any physical media. Whether … Read more

How to mount an ISO/IMG image in Windows

virtual drive, mount image, mount iso, windows

Ever found yourself needing to install software or access files from an ISO without burning it to a disc? Mounting ISO files in Windows is a game-changer. Whether you’re working with software installation packages, backup images, or disk utilities, knowing how to mount an ISO file makes your life easier. Let’s break it down step … Read more

Find large files on Linux: 5 Command-line Examples

Linux Shell Prompt

Running out of disk space on your Linux system? Don’t panic! Tracking down those massive files hogging your storage is simpler than it seems. Here are five practical command-line examples to help you identify and manage large files efficiently. 1. Using du and sort Together A quick way to find the biggest files in a … Read more