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Elasticsearch is an open source search engine developed based on Java, so you need to install the Java runtime environment to run it properly. Specifically, Elasticsearch is a distributed search engine built on Apache Lucene. It uses Java t...

In this article, let's review some interesting workarounds using the "s" substitution command in sed with a few real-world examples. 1. sed replaces the delimiter As we discussed in our previous article, we can use different delimiters in s...

This article demonstrates how to use to ssh securely connect to a remote Linux server. Securely access remote Linux servers using SSH (Secure Socket Shell) SSH is the abbreviation of Secure Socket Shell. It is a protocol used to securely ac...

The date and time information is not as visible on the command line as it is in the graphical version of Linux, but we can certainly date get that information using the command. This article will explain how to use date the command to get,...

date Let us see how to use command in Linux command line . date Set date in Linux using command Let's look at date the command, which can be used to view or change the system date and time. grammar: date [ option ] [ +format ] date Check sy...

This article will explain how to read the information in Linux cpuinfo . Later, we will look at what are CPU flags and what they mean. Reading in Linux cpuinfo /proc/cpuinfo The file contains detailed information about the CPU in your compu...

In this article, we will learn how to copy text from vim editor to another machine. We will copy the content to the clipboard. Use yank the command or register vim to copy and paste in . However, copying to another application (such as a br...

We can rename files and directories using the rename and commands in Linux terminal . The command can rename only one file at a time, but the command can rename multiple files at the same time. mv mv rename mv Rename files and directories u...

IP stands for Internet Protocol, which specifies the principles of Internet communications. An Internet Protocol (IP) address is a unique identifier for each device on the Internet, allowing data to be transferred between connected devices....

cp We can use the and commands in Linux Terminal rsync to copy files and directories. cp The command is generally used to copy files, while rsync the command is generally used to copy directories. Use cp the command to copy files We use com...

This article explains what a shell is, find out which shell you are currently using, check a list of all available shells, and the difference between sh and . bash What is a Shell A shell is a computer program that accepts commands. It also...

This article explains the difference between ~./bash_profile and files in Bash. ~/.bashrc What are startup files in Bash? Startup files are files that are executed after the shell is started. The startup files depend on the type of shell th...

In programming, a shebang is a series of tags and exclamation marks #! at the beginning of a file. It then provides the entire path to the interpreter that will execute the file's code /bin/bash . After that, comes the code itself. The inte...

In Linux, we can use Bash scripts to perform string manipulation such as concatenation, truncation, and finding words in a text. tr This article will explain how to translate or remove characters using command in Linux Bash . tr Using comma...

The Linux terminal has many environment variables that contain necessary information about the system. Also, applications may require some environment variables in order to execute. export This article will use the command to define an envi...