RPM Commands in Linux with Examples

RPM Commands Linux

RPM(Redhat Package Manager) is a command line package management utility used for installing, uninstalling, updating, querying and verifying software packages. This article I will explain some of the most common Linux rpm commands for a system admin. Some of the [...]

Bobbin Zachariah 1:30 am

How to Customize Shell Variable PS1-PS4 on Bash Prompt

You can see the real beauty of Linux when you use shell commands. There are some tasks which you cannot do in GUI and you have to use the shell. So having knowledge in shell commands, it will keep you [...]

Bobbin Zachariah 12:35 am

How to Change Bash Shell Prompt Colorful and Attractive in Linux

Most of us work with a shell prompt. By default most, Linux distro displays hostname and current working directory. But only a few may be knowing about customizing the Bash prompt. You will be excited to know that you can change [...]

Bobbin Zachariah 4:30 am

13 Practical df Command Examples to Check Disk Space in Linux

linux df command

The df command displays the disk space usage for the Linux filesystems. It displays the amount of total and free disk space available on the mounted file systems. Using the command, we can also find used blocks and inodes in [...]

Bobbin Zachariah 3:40 am

A Complete Docker Command List in Cheat Sheet

Docker Commands Cheat Sheet List

The idea of using container was made possible by the namespaces feature added to Linux kernel version 2.6.24. Namespaces allows to create an isolated container that has no visibility or access to objects outside the container. LXC, LXD, systemd-nspawn, Linux-VServer, [...]

Bobbin Zachariah 3:00 am

How to Configure MariaDB Replication on CentOS Linux

Its a process of creating duplicate versions of a the DB. Replication process is not only copies a database, but also synchronizes changes from master to one of the slaves. But this is does not means that slave databases are [...]

Bobbin Zachariah 6:00 am

4 Tools Send Email with Subject, Body and Attachment in Linux

smtp

In today's article we will cover a few ways you can use to send emails with attachments from the command line interface on Linux. It can have quite a few uses, for example to send an archive with an application [...]

Bobbin Zachariah 6:00 am

Bringing a Bunch of Best Known Linux Network Tools

tcpdump port

It is very useful to use command line tools to monitor the network on your system and there are a tons of them out there available for the linux user such as nethogs, ntopng, nload, iftop, iptraf, bmon, slurm, tcptrack, cbm, [...]

Bobbin Zachariah 6:00 am

Install Vivaldi in Linux - Awesome Multi Platform Browser

linoxide

A new browser is on the market. Vivaldi is a web browser based on Chromium / Blink (A project from Google), especially created for users who "have problems fitting all their open tabs on one screen" and for better performance than the existing browsers [...]

Bobbin Zachariah 11:00 am

Colourful ! systemd vs sysVinit Linux Cheatsheet

systemd is the new init system, starting with Fedora and now adopted in many distributions like RedHat, Suse and Centos. Historically, most of us have been using traditional SysV init scripts normally residing in /etc/rc.d/init.d/. These scripts invoke a daemon [...]

Bobbin Zachariah 10:38 am

A Pocket Guide for Linux ssh Command with Examples

X11 forwarding

If you have been in the IT world for quite some time you probably have heard about SSH, how great a tool it is and all its cool security features. In this tutorial you will learn how to use SSH [...]

Bobbin Zachariah 9:16 pm

How to Compile Linux with LXC and Create Application Container

container lxc

LXC (LinuX Containers) is an operating system–level virtualization method for running multiple isolated Linux systems (containers) on a single host. The Linux kernel comprises cgroups (control groups) for resource isolation (CPU, memory, block I/O, network, etc.) which does not require [...]

Bobbin Zachariah 9:15 am

How to Install Tomcat 8 on CentOS 7.0 (Multiple Instances)

Tomcat 8 on CentOS 7

Apache Tomcat is an open source web server and servlet container developed by the Apache Software Foundation. It implements the Java Servlet, JavaServer Pages (JSP), Java Unified Expression Language and Java WebSocket specifications from Sun Microsystems and provides a web [...]

Bobbin Zachariah 10:06 am

26 Linux Interview Questions and Answers (Basic and Scenarios)

linux Q & A 's

As the opportunities for linux jobs are increasing day by day, it's very adequate to start preparing for Linux interviews. In this article we have presented, questions and answers in basic level and scenarios. More likely all questions are related [...]

Bobbin Zachariah 8:37 am