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When your PC gets slow, don't immediately blame the hardware. While upgrading RAM, CPU, or switching to an SSD can help, these solutions require spending money. You can significantly improve your PC's performance by applying optimization techniques that address system problems without purchasing additional software or hardware. This article provides practical methods to speed up your slow PC using built-in Windows tools and simple maintenance practices. Stop Unwanted Processes Using Task Manager Your computer may be running numerous processes that consume valuable system resources. To identify resource-heavy processes: Right-click on the taskbar and select Task ... Read More
This article will teach you how to schedule a cron job for executing a script, command, or shell script at a particular time every day. As a system administrator, we know the importance of running routine maintenance jobs in the background automatically. The Linux cron utility helps us maintain these jobs to run automatically without manual intervention. General Syntax of a Cron Job The cron job format consists of five time fields followed by the command to execute − MIN HOUR Day_of_Month Month Day_of_Week Command 0-59 0-23 1-31 1-12 0-6 Any Linux command or script ... Read More
The "Argument list too long" error occurs when a Linux command receives more arguments than the system can handle. This happens when shell glob expansion (like *) expands to thousands of filenames, exceeding the kernel's argument buffer limit defined by ARG_MAX. What Causes the Error? When you use wildcards like *, the shell expands them into individual filenames before passing them to the command. If a directory contains many files, this expansion can exceed system limits. $ ls -lrt | wc -l 230086 $ ls -lrt events* | wc -l -bash: /usr/bin/ls: Argument list too ... Read More
Installing programs on Linux often requires user interaction, such as agreeing to license terms or confirming installation options. To automate this process, you can use scripts that automatically provide the desired responses. This article explains how to script "yes" responses when installing programs on Linux using command line tools. Using the "yes" Command The yes command is a built-in utility that continuously outputs a specified string, making it perfect for automated responses to installation prompts. Basic Usage The yes command is part of the coreutils package, which is pre-installed on most Linux distributions. To use it, ... Read More
When working on a Linux terminal, you may sometimes need to keep several processes running at the same time. However, if you close the terminal or accidentally disconnect from a remote session, processes will terminate, and you may lose all your progress. This is where the Linux screen command comes in handy. Screen is a powerful command-line utility that allows you to create and manage multiple terminal sessions within a single shell window or over SSH connections. It is a handy tool for managing long-running processes or multiple commands, even if you are not physically connected to the server. ... Read More
The official Docker registry contains a lot of pre-built images and publicly available customized images that are very useful and can be easily pulled by users on their local machine and used as base images for their projects. In fact, you can also build your own customized docker image using one of those publicly available docker images and push it back either in a public or private mode. In this article, we will discuss how to search for a docker image using the search command through the command line interface. We will also see how to filter the search ... Read More
Linux has always been known as a go-to operating system for developers and programmers. However, with the rise in popularity of gaming on Linux, several Linux distributions have come forward to cater to the gaming community. These distributions have been specifically designed to enhance the gaming experience on Linux by providing pre-configured gaming environments, optimized drivers, and specialized tools. What is a Linux Gaming Distribution? A Linux gaming distribution is a specialized Linux distribution that has been customized and optimized for gaming purposes. These distributions come pre-installed with gaming software, graphics drivers, and compatibility libraries like Wine and ... Read More
Secure Shell (SSH) is a popular network protocol used to remotely access and manage Linux-based systems. As an administrator, you should take appropriate measures to ensure security of your systems, data, and users. In this article, we will discuss five essential Linux SSH security best practices to secure your systems. Use Strong Authentication Methods Authentication is the process of verifying the identity of a user or system. By default, SSH uses a combination of username and password for authentication. However, this method is susceptible to brute force attacks and can be easily compromised if the password is weak ... Read More
Anaconda is a free and open-source distribution of Python programming language widely used in data science, machine learning, and artificial intelligence. It comes with a package manager and pre-installed libraries that make it easy for developers to start working on data science projects without worrying about installing dependencies. This article explains how to install Anaconda on CentOS 7. Prerequisites Before installing Anaconda, ensure you have the following requirements − A CentOS 7 server with root access A stable internet connection At least 4 GB of RAM At least 10 GB of free disk space ... Read More
Suppose you are using a MySQL Docker container and you want to pass environment variables to your container while running the container. It's always a good idea to isolate the services from the configuration and it's always advised to use environment variables for this purpose. Predominantly, there are three different ways through which we can pass environment variables to our Docker containers. These are by using the -e, --env-file, and the ENV instruction inside the Dockerfile. Let's check out all these methods one by one with examples. Passing Environment Variables Using the --env or -e Flag To ... Read More