In Linux, it is often useful to randomize lines of a file. This can be helpful when working with large datasets or when performing certain operations that require lines of a file to be in a random order. In this article, we will discuss different ways to randomize lines in ... Read More

Introduction Bash is a popular command-line shell used in Linux and other Unix-based operating systems. One of powerful features of Bash is its support for arrays. An array is a collection of values that can be accessed using an index. In this article, we will discuss basics of Bash arrays ... Read More

Introduction Docker Compose is a tool for defining and running multi-container Docker applications. It allows developers to define their application stack as a YAML file, making it easy to spin up complex environments with just a few commands. However, using private repositories with Docker Compose can be tricky. In this ... Read More

As a Linux user, you must have come across time command. It is a simple yet powerful command that allows you to measure execution time of a process. Whether you are a developer, system administrator, or just a curious user, understanding how time command works is essential for optimizing your ... Read More

Introduction Linux command-line interface is one of most powerful tools available to system administrators and developers for managing and working with their systems. One of challenges with CLI is that it requires memorizing many commands and options. However, there are tools that make it easier to navigate command line, such ... Read More

Introduction The Linux source command is an essential tool for Linux users and administrators. It is used to execute a script file in current shell environment, and it allows you to modify current shell environment in same way that you would if you had typed commands manually. In this article, ... Read More

Process memory management is a crucial aspect of any operating system. In Linux, memory management system is designed to efficiently manage memory usage, allowing processes to access and use memory they require while preventing them from accessing memory they do not own. In this article, we will discuss process memory ... Read More

Introduction Linux is an open-source operating system that is widely used in industry. One of most notable features of Linux is its command-line interface (CLI), which provides a lot of flexibility and power to users. When working in command line, it is common to run multiple commands concurrently. However, sometimes, ... Read More

In Linux, reading a random line from a file can be a useful task in various scenarios. For example, when you want to select a random word from a dictionary or randomly select a line from a log file for analysis purposes. There are several ways to read a random ... Read More

Introduction Awk is a powerful text processing tool that can be used to automate various tasks such as data manipulation, filtering, and reporting. One of interesting features of awk is its ability to call external programs from within script. In this article, we will explore how to call an ... Read More