Linux free Command Tutorial with Examples

Linux free Command Tutorial with Examples

The Linux free command is used to display current memory usage. The free command can be used to show how much RAM memory is available. Is there enough memory to run a new application? etc. The free command is a very simple command which simply shows few lines about the memory. The free command can … Read more

How To Make Bash Script Executable with chmod?

How To Make Bash Script Executable with chmod?

Linux script files are very useful to execute multiple commands again and again. They are a very practical way to executed multiple commands. But in order to run a script file, it should be executable. By default when a script file is created it is not executable. In order to make it executable, the chmod … Read more

How To Find Linux OS Distribution and Version?

How To Find Linux OS Distribution and Version?

Linux is a free and open-source operating system. A lot of distributions and versions are created on the Linux kernel. Even all of them are called Linux they have specific names and versions like Ubuntu 20.04, Debian 11, RHEL 8, etc. While working with Linux knowing the distributions and version is very important. Especially while … Read more

Linux ntpdate Command Tutorial

Linux ntpdate Command Tutorial

The ntp protocol is used to configure and update date and time information for IT systems. The ntpdate command is a tool used to configure and update the date and time information with the ntp protocol. The ntpdate simply queries the date and time information and sets the current system date and time according to … Read more

How To Clean Yum Cache In CentOS/RHEL?

How To Clean Yum Cache In CentOS/RHEL?

Yum is a tool used to manage packages in CentOS, RHEL, Fedora, etc. Yum simply downloads and installs packages or removes them. The downloaded packages are cached in the local system for future use. But this requires some disk space. The yum cache can be cleaned in different ways which are related to the cached … Read more

Set Date, Time, and Timezone In Linux

Set Date, Time, and Timezone In Linux

Date, time, and timezone are very important for IT systems. This information is used to provide information about log time, operation time, etc. The date is related to the day, weekday, month, yea, etc. Time is related to the hour, minute, second, etc. Timezone is the difference between current location time from the GMT. Print … Read more

Make HTTP Get Request with curl Command

Make HTTP Get Request with curl Command

The curl command is used to make requests and act as a client for a lot of popular network-based protocols. HTTP requests can be created with the curl command easily. HTTP Get request is a popular request to get remote resources via the HTTP protocol. In this tutorial, we will learn how to make HTTP … Read more