In this tutorial we will learn how to get EC2 Instance Metadata from an AWS EC2 instance. We will get the metadata using ec2-metadata and ec2 metadata. This is not typo. The tools name is really similar but one of them using dash on its name.

In this tutorial we will test the behaviour of `javax.net.ssl.trustStore` option. The objective is to check whether Djavax.net.ssl.trustStore` option append or replace the default java keystore being used by java.

In this tutorial, we will learn how to install MongoDB 4.4 on Ubuntu 20.04 LTS. We will also learn to configure and secure our MongoDB 4.4 installation

In this tutorial we learn how to use sleep command in Linux. Sleep command can be used to provide delay between two commands invocations.

How to show the current user in Linux? we can use users command in Linux that will provide the information written in utmp file.

In this tutorial we will learn how to use true command in Linux. We'll also learn the common usage of true in shell script.

In this tutorial we learn how to use logname command in Linux. The logname command print current user login name.

What is Linux link Command? In this tutorial, we learn how to use the link command in Linux. link command calls the link function to create a link to a file. link command creates a single hard link. The link command is the simplified version of the ln command that provides a simple way to create a hard link. ...

In this tutorial we will learn how to use hostid command in linux. hostid command print numeric identifier of current host.