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Found 1436 Articles for Linux
7K+ Views
Introduction The Bash shell is one of most widely used shells in Unix/Linux environment. One of its most useful commands is wait command. In this article, we will explore Bash wait command and its usage with examples. What is Bash wait Command? The wait command is a built-in Bash shell command that waits for termination of a background process. This means that Bash shell will pause execution until specified process has completed. Usage of Bash wait Command The basic syntax of wait command is as follows − wait [n] Here, 'n' is process ID of background process that we ... Read More
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Bash is a powerful shell used in Linux systems for executing commands and managing processes. trap command in Bash is a useful tool for handling signals and errors that can occur during script execution. In this article, we'll explain what Bash trap command is, how it works, and give some examples of how you can use it. What is Bash Trap Command? The Bash trap command is a mechanism that allows you to handle signals and errors that can occur during script execution. Signals are software interrupts that are sent to a process to notify it of an event, such ... Read More
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When it comes to programming in Bash, string comparison is a fundamental concept that every developer needs to be familiar with. Bash string comparison involves comparing two strings and evaluating whether they are equal, not equal, greater than, or less than each other. Understanding how to compare strings in Bash is essential for writing reliable and robust scripts. In this article, we'll explore basics of Bash string comparison and provide examples to help you understand concept better. We'll start with an introduction to comparison operators and then move on to different types of string comparison techniques. Comparison Operators Bash provides ... Read More
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If you are a Linux user or administrator, you might have heard of term "BCC tools" or "BPF Compiler Collection." BCC is a powerful set of dynamic tracing tools that provides a simple yet effective way to monitor system performance, networking, and much more. In this article, we will discuss what BCC tools are, their benefits, and how to use them with examples. What are BCC Tools? BCC (BPF Compiler Collection) is a set of dynamic tracing tools built on top of eBPF (extended Berkeley Packet Filter) technology in Linux kernel. eBPF is a virtual machine that runs inside kernel ... Read More
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As a developer, you might find yourself using command line interface (CLI) quite often. CLI allows you to interact with your computer through a terminal window and run commands to perform tasks. One of most popular shells used in CLI is Bash shell. Bash is a powerful tool, but it can be overwhelming to manage your scripts, aliases, and functions. This is where Bash-it comes in. Bash-it is a framework for managing your Bash configuration files. It provides a collection of scripts, aliases, and functions that you can use to customize your Bash environment. With Bash-it, you can easily control ... Read More
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If you've spent any time using Bash, you've probably noticed that there are two types of quotes you can use when defining variables or passing arguments to commands: single quotes (' ') and double quotes (" "). At first glance, these quotes might seem interchangeable, but there are actually some key differences between them that can impact behavior of your Bash commands. In this article, we'll explore those differences and explain when you should use single quotes, when you should use double quotes, and what happens when you mix them up. Defining Single and Double Quotes Before we dive into ... Read More
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If you're a Linux or Unix user, chances are you've used Bash at least once or twice. Bash is a command-line shell that lets you interact with your operating system in a more direct and powerful way than using a graphical user interface. One of most powerful features of Bash is for loop, which lets you automate repetitive tasks by iterating over a list of values. In this article, we'll explore how Bash for loop works and provide some examples of how you can use it in your own scripts. What is a For Loop? A for loop is a ... Read More
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Printing variables in Bash is a common task when working with shell scripts. Bash printf command is a powerful tool that allows you to print variables with precision and formatting options. In this article, we will explore how to use Bash printf to print variables in various ways. What is Bash Printf? Bash printf is a command-line utility that is used to format and print text on terminal. It is a built-in command in Bash, which means that it is available in every Bash shell session without need for any external dependencies. The printf command is similar to echo command, ... Read More
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Kubernetes is an open-source container orchestration platform that allows organizations to deploy, manage, and scale containerized applications. With its widespread adoption, Kubernetes security has become a crucial concern for businesses to ensure safety of their workloads. This article highlights six Kubernetes security best practices that can help secure your workloads. Implement Role-Based Access Control (RBAC) One of critical security features of Kubernetes is Role-Based Access Control (RBAC), which restricts users' access to Kubernetes API based on their roles and responsibilities. With RBAC, organizations can define roles for users, groups, or service accounts and assign specific permissions to perform actions within ... Read More
2K+ Views
If you're a Linux user, chances are you rely on Firefox as your go-to web browser. Firefox is a fast and reliable browser, but it can still suffer from slow performance if you're not careful. Luckily, there are several easy ways to speed up Firefox on your Linux desktop. Here are five ways to do it − Install uBlock Origin One of easiest ways to speed up Firefox on Linux is by installing uBlock Origin. This is an open-source browser extension that blocks ads, trackers, and malware. By blocking these unwanted elements, uBlock Origin can significantly speed up Firefox's loading ... Read More