Arguments and OptionsBash is the default shell for Linux & macOS. It’s an interpreted language providing users with an interface to the OS. Learning how to use command line arguments & options in Bash is important for power & advanced users. This blog explains what they are & how to use them… Read More »Learn Bash Command Line Arguments and Options
Bulk Renaming Files with a Bash ScriptPrerequisites Before diving into the topic, it is important to have a basic understanding of bash scripting. You’ll also need a Unix-based system, such as Linux or macOS. On Windows you can also use WSL2 or a Linux Vagrant Box, which is also a safe way to test your script… Read More »Automate Bulk Renaming Files with a Bash Script
LogwatchLinux Logwatch is a log analysis tool that provides a centralized view of all log data generated by various system components. It helps system administrators keep track of important events, troubleshoot issues, and monitor system security. In this article, we will discuss the basics of Logwatch, its usage, and some… Read More »Monitor System Security Easily with Logwatch
iptablesIptables is a tool to manage the incoming and outgoing network traffic on a Linux system. This blog post provides a comprehensive overview of iptables, including its basic concepts, use cases, and security considerations. Additionally, this blog post provides tips for using iptables in real-world scenarios and offers a challenge… Read More »Protect Your Network with iptables
tee Command for Redirecting Terminal OutputsThe tee command is a fundamental tool for Linux users. This command allows you to capture and manipulate the output of other commands and redirect it in various ways. This makes it a powerful tool for logging, debugging, and scripting. In this article, we’ll explore the basics of the tee… Read More »Use tee Command for Redirecting Terminal Outputs
History CommandThe bash history command is a powerful tool that allows users to keep track of their command-line activities, making it easier to repeat frequently used commands, save time, and avoid errors. Prerequisites Before diving into the bash history command, it’s essential to understand the basics of the command line. Additionally,… Read More »Search & Repeat Commands in Bash with History Command
Terminal vs Shell vs Bash: What’s the Difference?If you are a Linux user or a system administrator, you may have come across the terms Terminal, Shell, and Bash. These three terms are often used interchangeably, but they are not the same thing. In this blog, I will clarify the differences between Terminal, Shell, and Bash and how… Read More »Terminal vs Shell vs Bash: What’s the Difference?
Host CommandThe host command is a powerful tool in the Linux system that helps you manage your DNS (Domain Name System) records. The host command allows you to perform various tasks related to DNS, including resolving hostnames to IP addresses, performing reverse lookups, and retrieving information about a specific DNS server.… Read More »Troubleshoot DNS with the Host Command
Track Changes in a Linux MachineTracking changes in a Linux machine can be a crucial task for administrators who want to monitor and maintain the system’s stability. Keeping track of the changes happening in the system helps identify potential problems and security threats, and enables quick resolution. In this article, we will explore various tools… Read More »How to Track Changes in a Linux Machine
WildcardsWildcards are an essential component of bash shell scripting and can be used to match patterns in filenames and directories. In this article, we’ll explore the ins and outs of using wildcards in bash and demonstrate their practical applications with real-world examples. Prerequisites Before diving into the topic, it’s important… Read More »Automate Your Bash Workflow with Wildcards