Harry Hill

Content Writer ( 111 Articles )

I’m Harry, the CTO of OperaVPS and a Senior Linux System Administrator with a strong background in systems engineering, DevOps, and cloud infrastructure. Since 2020, I’ve been sharing advanced insights on topics like virtualization technologies, Linux performance tuning, and secure server deployment. My focus is on delivering in-depth content for developers and professionals who want scalable, reliable, and efficient solutions.

Practical Examples to Use top Command in Linux

How to Use top Command in Linux + 20 Examples

As a Linux administrator, you would use monitoring tools to do your system administrative jobs perfectly. The top command in Linux enables you to have a real-time view of the processes running and system performance on your system. Running the top command displays a summary system such as CPU, memory, system load averages, a list […]

cmp Command in Linux

cmp Command Linux

The cmp command in Linux compares two files byte by byte, identifying the first point of difference or confirming if they’re identical. If the files match, it exits without output. If they differ, it reports the location of the first mismatch. The cmp command Linux​ is ideal for efficiently comparing both text and binary files […]

finger Command in Linux

finger Command in Linux

The finger command provides detailed information about users currently logged into a Linux system and reveals additional details such as login time, idle time, and user-specific notes or projects. Linux administrators can monitor user activity and manage accounts effectively using the comprehensive output of finger command. Basic Syntax of finger command: finger [options] [username] Prerequisites […]

What is tail Command in Linux

Mastering the tail Command in Linux for Developers

tail Command in Linux displays the last lines of a file in real time. Developers use it to monitor log files or outputs. Use tail to track changes without reopening the file.

Change Default Terminal in Ubuntu

How to Change Default Terminal in Ubuntu?

The terminal emulator is a crucial part of any Ubuntu user’s toolkit, providing direct access to the system’s command-line interface. While Ubuntu comes with GNOME Terminal by default, it might not be the best fit for everyone. Some users prefer a terminal with more features, a better interface, or enhanced performance. Ubuntu allows you to […]

whereis Command in Linux

How to Use the whereis Command in Linux

The whereis Command in Linux locates binary, source, and manual files for a specified command by querying the system’s indexed database. It enables quick access to executable paths and documentation for efficient system management. Linux whereis command basic syntax is as follows: whereis [options] [command_name or filename]

locate Command in Linux to find files

locate Command in Linux

The locate command in Linux is a file-searching command-line tool used to quickly find files and directories based on their names by searching updated databases. To use the locate command run the following syntax in the terminal and find the location of the files in your Linux system simply and quickly: locate [filename or part […]

List Current Logged-In Users in Linux VPS

How to List Current Logged-In Users in Linux VPS?

Listing current logged-in users in Linux VPS is an essential administration task, especially if you work in a multi-user Linux environment. Here are various ways to list current logged-in users in Linux VPS at a glance: The users command The w command The who command Reading the content of /etc/passwd file using commands cat, less, […]

How To Create A cPanel Account

How To Create A cPanel Account?

cPanel is the most famous and the best control panel used to host content and websites in the web environment. Unlike most other control panels, cPanel gives you full access to the tools you need to manage your website. cPanel has 3 main types that you should pay attention to when ordering one. Let us […]

Linux history Command

Linux history Command

Linux history command is a powerful tool that allows you to review and manage your past commands. It provides a record of the commands you have executed in your terminal, making it easy to repeat or modify them. As a Linux user, you can use history to search for specific commands, filter the output, and […]

Examples of Linux uname Command

Linux uname Command

The uname command in Linux is a versatile tool for obtaining detailed information about your Linux system. It provides a comprehensive overview of several system components, making it invaluable for system administrators, developers, and users alike. The Basic Syntax of the Linux uname Command is as follows: uname [OPTIONs] Or, uname syntax is like below […]

Install Stacer on Ubuntu

How to Install Stacer on Ubuntu

Stacer is an open-source and user-friendly system optimizer and visualizer designed to empower Ubuntu users. Stacer simplifies system optimization for LinuxUbuntu users, offering tools for disk management, startup control, and in-depth system analysis, transforming complex data into actionable insights. This guide offers step-by-step instructions for installing Stacer on Ubuntu. Choose from two installation methods according […]

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