In this tutorial, we will learn how to use the echo command in Linux. You might have heard an echo in science where it is considered as repeated sound. Here, it is totally different. Don’t mess Linux commands with science’s terminologies. Folks don’t get confused with this. The echo command in Linux is one of …
The time command in Linux is used to determine how long a given command will take to run. We use the time command to test the performance of scripts and commands. What’s the Need for the time Command in Linux? If you’re a system administrator working on a Linux system, it is necessary for you …
In this tutorial, we’ll be going over the Linux watch command and how we can utilize it in our Linux administration work. Essentially, the watch command is a utility that allows us to continually execute a command at specific intervals and monitor the differences between the outputs. Why could this be useful? For a lot …
In this tutorial, we are going to discuss how to install Apache Kafka on Ubuntu. What is Apache Kafka? Apache Kafka is an open-source stream-processing software platform developed by LinkedIn and donated to Apache Software Foundation, written in Scala and Java. In simple terms, Kafka is a messaging system that is designed to be fast, …
Most of the Linux Distributions don’t allow ‘root’ user also known as superuser by default as a security measure to prevent accidental or intentional changes that could harm the system. Especially in an enterprise setup this would mean disaster. Instead, it uses a feature called sudo, which allows authorized users to perform administrative tasks without …
Adding Users to Sudoers in Linux – A Step-by-Step Tutorial Read More »
In this tutorial, we are going to discuss how to change the user password in Linux. The instructions given below can work on any Linux distribution. The passwd command is used to update or change the user’s authentication token. There are two types of users; normal users, and the root user. The normal user can …
How to Change User Password in Linux using passwd command? Read More »
The Linux which command is used to identify the path of executable files. The path is identified by searching it in the path environment variables. Syntax of Linux which is as follows: What is the PATH variable? PATH is an environment variable in Linux and other Unix-like operating systems that tells the shell which directories …
Find command is used to filter objects in the file system. It can be used to find files, directories, files of particular pattern i.e. txt,.php and so on. It can search by file name, folder name, modification date , by permissions and so on. Note: Linux is case sensitive. “File”,”file”,”FiLe”,”FILE” all are different file names …
Linux date command is used to display the system date and time. We can also print the past date, future date or set the date manually. By default, the date command prints the current date of the Linux system. Here I have listed some of the date command options which one can use to have …
The chmod (change mode) command in Linux is used to change the access mode of a file, based on the type of user accessing the file and the type of permission associated with accessing the file. File Permissions and User Groups For understanding what the types of permissions and the types of users are, let …