At Unixmen, we have been explaining each and every important Linux command in detail that would help the Linux community abundantly and one such crucial command is the tar command in Linux. Tar is short for “tape archive”. This command is used to create, maintain, modify, and extract all files in a Linux device that are archived in the tar format. … [Read more...]

TCPDump is an essential tool for security professionals, system administrators, and network administrators. It provides capabilities to capture and analyze network traffic. Here are the most common reasons why TCPDump is useful: Troubleshoot networks: TCPDump allows network administrators to capture network packets, which can be analyzed to … [Read more...]

A Quick Introduction The “sleep” command in bash scripting pauses the execution of a script for a specified amount of time. The primary use of the sleep command is to introduce delays between commands or tasks, and also to control the timing and sequence of operations. The syntax to invoke bash sleep command is simple: sleep . The number … [Read more...]

The grep command is a fairly simple command when used alone. But when it is used with regular expressions (RegEx), the grep command becomes a very powerful and useful tool for searching for key strings in Linux. Irrespective of the environment, understanding grep and RegEx will help you navigate files and directories. In this extensive guide, … [Read more...]

A Quick Introduction Before we learn how to add user to sudoers file, let us learn why it is important, the prerequisites, and the best practices as well. One of the many advantages of using Linux is the extensive RBAC (role based access control) capabilities. With different user roles and permissions, system security and multi-user … [Read more...]

With the advent of complex computing structures, cloud, containers, and new technologies everyday, the role of networking is irreplaceable. In the realm of networking, IP addresses play the most crucial role in identifying the devices and maintaining smooth communication across the world and even the International Space Station (ISS) as well. In … [Read more...]

Gone are the days when rebooting a computer or server was done only when the device became unresponsive. Rebooting a Linux device is now a usual task that users have to perform for common reasons like troubleshooting, applying patches and updates, and to install new applications. In this article, let us take you through the linux reboot command, … [Read more...]

As always, it is essential to understand what Vim is before we jump deep into its commands to understand the context better. Vim is a highly lauded configurable text editor that provides efficient text editing. In addition to being a no nonsense vanilla text editor, it also hosts a plethora of commands to further boost the productivity and … [Read more...]

RHEL 8 (RedHat Enterprise Linux series 8) is one of the most expected and celebrated series of operating system versions in the tech community. With the launch of RedHat’s series 8 operating system, RedHat offered enhanced reliability, performance, security, and deployment to organizations. In this article, let us learn if RHEL 8 is an ideal choice … [Read more...]

Curl command was first developed by a developer who wanted to get foreign exchange rates of his local currency everyday. Little did he know, curl command took over the Linux community with its versatile usage. The curl command is used to transfer data to or from a server with the help of different protocols like FTP, HTTPS, and many more. Typical … [Read more...]