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
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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
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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,
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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
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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
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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
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In this tutorial, we’ll learn how to set environment variables in Linux manually. When using Linux, the Kernel sets up the environment with default values for a lot of variables that we would need to use. This includes the default paths, languages, default shell, home directory, and more. Let’s go over how and where Linux
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In this tutorial, we’ll look at how we can install Node.JS on Ubuntu 18.04 machine, in just a few steps! Node.JS is one of the most popular Javascript frameworks used in web development – whether it be front end or back end; this provides the complete package, and is the most used Javascript library today.
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A DNS cache (sometimes called a DNS resolver cache) is a temporary database, maintained by a computer’s operating system, that contains records of all the recent visits and attempted visits to websites and other internet domains. You may want to sometimes clear your DNS Cache, especially if you give access permission to another person, or
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There are multiple ways of setting hostname in Debian or Linux system. You can temporarily change the hostname, or permanently apply the changes to a system. Let’s go over these methods. Setting hostname temporarily Let’s start with the temporary and simple method. The hostname command in Debian allows you to set up the system hostname
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