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In programming languages, the length or size of a data type plays an important role. It helps in list traversal and facilitates the extraction of useful information. The length is especially important when performing tasks that require trav...

Counting how many files are in a directory is a common task in Bash, and there are a number of different tools and methods that can be used to perform this operation. In general, the appropriate method depends on the specific requirements a...

Counting unique lines in a file is a common task in Linux, and there are a number of different tools and methods that can be used to perform this operation. In general, the appropriate method depends on the specific requirements and constra...

Duplicate entries can cause a variety of problems in Bash scripts, such as incorrect or inconsistent results, and they can also make the script difficult to maintain. Removing duplicate entries from a script is often necessary to avoid thes...

In this article, we will discuss standard output and standard error in Linux. We will see how to redirect standard output and standard error in Bash. Let us start by understanding the terms standard output and standard error in Linux. Stand...

A progress bar is a visual indicator that shows the progress of a task, such as a long-running script or command. It can be used to provide feedback to the user about the status of a task and can also help estimate the time remaining before...

NTP is a core protocol used by most IT infrastructures. Its purpose is to synchronize date and time information. However, it is very important to configure NTP for your servers, clients, and other network devices. NTP uses a UDP port number...

If you are using Linux and are looking for a tool that can monitor all the processes running on your system, then you should use the command ps aux. This command will show you an overview of all running processes. It is very useful for trou...

In this article, we will learn how to fix the error mesg: ttyname failed: Inappropriate ioctl for device in Linux . We will discuss some of the causes of this error and show you how to fix it. Let's start with what causes this error in Linu...

In this article, we will learn how to execute binary files in Linux. We will also learn how to troubleshoot the error if Linux fails to execute the binary file. Usually, this error occurs when we run shell scripts in Linux. This article wil...

In this Linux article, we will learn about lsof command in Linux operating system. We will see how to use this command for different purposes in Linux. We use lsof the lsof command to verify the ports in use on the Linux operating system. U...

In this Linux article, we will learn how to install .deb (Debian Package) files on Linux systems. We will also see how to remove .deb files after installation. More importantly, we will learn different ways to install .deb files on Linux sy...

This article will teach us how to update YUM in Linux and how to install, update, remove, find and manage packages on a Linux system. We have also seen the difference yum update between and in Linux yum upgrade . yum update command in Linux...

This short article is a brief introduction to CentOS followed by a brief discussion on how we can get the server IP address in CentOS using the Command Line Interface (CLI). This article will discuss some of the commands and their usage for...

If present, the working directory of a process in Compute is a directory in a linked hierarchical file system that is dynamic for each process. In Docker, we can set our working directory by editing the Dockerfile and adding the key WORKDIR...