Linux Command Line Cheat Sheet Book Download

Linux Command Line Cheat Sheet Book

Did you know that there are literally hundreds of Linux commands? Even on a bare-bones Linux server install there are easily over 1,000 different commands.

The interesting thing is that most people only need to use a very small subset of those commands.  I like to pride myself on my command line prowess, but there are really only about a hundred commands that I ever use and even fewer that I use on a daily basis.

Would you like to know what those common commands are?

Well, lucky for you I put together a Linux command line cheat sheet. It breaks down commands by category and includes a clickable table of contents.  That way you can quickly find the exact command you need.

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who command

w command who command and hostnamectl commands

In this Article we are going to Learn about w command who command and hostnamectl  commands

  • w command
  • who command
  • hostname command to assign hostname and display hostname
  • configuring hostname using hostnamectl command
  • uname command to check hardware architecture and Os version
  • id command to check user identity information
  • Last command will give details info about when server is rebooted

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samba server installation and configuration in rhel 7 / centos 7

We can also call this as CIFS (Common Internet File System) shares, Sharing the directories / Folders across the corporate network. Sharing the Directories / Folders from Linux to Windows and Windows to Linux wise versa we have to use SMB (samba) protocol. Samba is not only used for sharing directories, we can also use it for sharing printing services (printing server). I will explain you in detailed simple way to create and manage samba shares in RHEL 7.

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Hosting Secret Web Server in RHEL 7 / Centos 7

creating secret website means Installing and configuring Apache server and host an web site but web site would not accessible from all the hosts and its not visible even to the other hosts.

Why we have to host such a type of web site..?

We know maintaining confidential information as confidentially is very impotent, such a type of information can’t be shared / see by others who are not authorized to see. In this cases we can host a web site which will not be accessible from any other hosts, we can allow only certain IP addresses to access the web site.

creating secret website using Apache server in RHEL 7 procedure

Full Article

Integrating SSL certificate with web server

Secure web Server using SSL certification in RHEL 7

Installing and configuring Secure web Server in RHEL 7. SSL Certificates are small data files that digitally bind a cryptographic key to an organization’s details. When we installed an web server with SSL (Secure Socket Later) certificate it shows an padlock in starting of the address bar and HTTPS protocol. As shown in the below figure.

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10 recorded Centos Video Classes, exclusively for you.

10 recorded Centos Video Classes, exclusively for you.
1. Introduction about Centos 7

Introduction to the Linux – Centos 7

2. File System Hierarchy with fully animated graphics

File System Hierarchy – Centos 7

3. Build your Lab using Virtualization

Centos Build Your Lab on Virtual

4. Installation of VirtualBox

Centos Install Virtual Box on Windows

5. Create your First Virtual Machine

Centos Create your First Virtual Machine

6. Centos 7 Installation Process Part -1

Centos 7 Installation Part 1 in virtual Box

7. Centos 7 Installation Process Part -2

Centos 7 Installation Part 2 in Virtual Box

8. First Look of Centos 7

Centos 7 Start the Centos

9.Few Basic Commands

Centos 7 ls Command to List files and Directories

10. Change and Moving between Directories

Centos 7 cd Command to move in between directories

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systemctl command in rhel 7 and centos 7

use systemctl to start, restart and shutdown rhel 7 and centos 7

In this article we are going to learn how to restart, shutdown and change run Levels = Targets in RHEL 7. This article is useful for the guys who are preparing for the RHCSA and RHCE examination.

Using operating systems

Start, restart and shutdown a system normally
Start systems manually in different destinations
Interrupting the boot process in order to gain access to a system
Identify the processes that make heavy use of the CPU and memory, adjust the priority of processes renice and kill processes
Locate and interpret system log files and newspapers
Access the console of a virtual machine
Start and stop virtual machines
Transfer files between different systems securely

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collect server information using shell script

Gather server information within a second

If we have lot many servers and we would like to collect the asset inventory of each and every server then it is very difficult to run various commands we have to run in order to collect / gather entire information about each server. If we manually run all the commands in each server it may require 5 minutes of time for each server where using below script which may reduce your time to 2 minutes for 100 Servers wow..!!.

Gather server information within a second

Lets see how we can achieve this task using shell script.

Note: We do not recommend to run this script in any production servers, we strictly suggest you to run this in test or home environment only. This script will come either no WARRANTY with NO support.

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