How to Set or Change System Hostname in Linux
Device or system hostnames are used to easily recognize a machine within a network in a human readable format. It is not much of a surprise, but on Linux system, the hostname can be easily…
How to Set Static IP Address and Configure Network in Linux
If you are a Linux system administrator, time will come when you will need to configure networking on your system. Unlike desktop machines where you can use dynamic IP addresses, on a server infrastructure, you…
How to Use ‘cat’ and ‘tac’ Commands with Examples in Linux
This article is a part of our Linux Tricks and Tips series, in this article we will cover some basic usage of cat command (most frequently used command in Linux) and tac (reverse of cat…
How to Use Awk and Regular Expressions to Filter Text or String in Files
When we run certain commands in Unix/Linux to read or edit text from a string or file, we most times try to filter output to a given section of interest. This is where using regular…
How to Run or Repeat a Linux Command Every X Seconds Forever
A system administrator often needs to run a command repeatedly in a certain periods of time. Often such tasks can be easily completed with simple cron commands. In most of the cases this should work, but…
5 Ways to Keep Remote SSH Sessions and Processes Running After Disconnection
SSH or Secure Shell in simple terms is a way by which a person can remotely access another user on other system but only in command line i.e. non-GUI mode. In more technical terms, when…
How to Set and Unset Local, User and System Wide Environment Variables in Linux
Environment Variables are some special variables that are defined in shell and are needed by programs while execution. They can be system defined or user defined. System defined variables are those which are set by…
How to Find and Sort Files Based on Modification Date and Time in Linux
Usually, we are in habit of saving a lot of information in form of files on our system. Some, hidden files, some kept in a separate folder created for our ease of understanding, while some…
How to Optimize and Compress JPEG or PNG Images in Linux Commandline
You have a lot of images, and want to optimize and compress the images without losing its original quality before uploading them to any cloud or local storages? There are plenty of GUI applications available…
How to Disable/Lock or Blacklist Package Updates using Apt Tool
APT means Advanced Packaging Tool is another package manager found on Linux based systems. Initially designed as a front-end for dpkg to work with .deb packages, apt has succeeded to show his visibility on Mac…
4 Ways to Disable/Lock Certain Package Updates Using Yum Command
Package Manager is software which allows a user in case of installation of new software, up-gradation of system, or updating any specific software and such sorts of things. In case of Linux based systems wherein…
How to Transfer Files Between Two Computers using nc and pv Commands
Hi fellow Linux readers, I’m bringing you yet another great article from our Linux Tips and Tricks series, this time we will be using two lesser known Linux utilities that you should must know about….
How to Change Linux Partition Label Names on EXT4 / EXT3 / EXT2 and Swap
A Partition is a space carved out from a physical disk which can be used to either install an Operating System or just act as a storage space for Users files and other data. Each…
How to Extract Tar Files to Specific or Different Directory in Linux
The tar utility is one of the utilities that you can use to create a backup on a Linux system. It includes many options that one can use to specify the task to achieve. Extract…
How to Delete User Accounts with Home Directory in Linux
In this tutorial, I am going to take your through steps you can use to delete a user’s account together with his/her home directory on a Linux system. Delete User Accounts with Home Directory in…