Welcome to the Linux Knowledge Base and Tutorial
so you want to learn how to use the Bash command line interface (terminal) on Unix/Linux. Or, it’s part of a subject you’re doing and so you’re learning it because you have to. Either way, that’s great. You’re learning how to use a powerful tool that can make your life easier, and make you awesome (more so than I’m sure you already are) .
Complete tutorial will cover the below things:-
- Installation – Installation of different flavor of Linux
- Un installation –
- The Command Line – What is it, how does it work and how do I get to one.
- Basic Navigation – An introduction to the Linux directory system and how to get around it.
- More About Files – Find out some interesting characteristics of files and directories in a Linux environment.
- Manual Pages – Learn how to make the most of the Linux commands you are learning.
- File Manipulation – How to make, remove, rename, copy and move files and directories.
- Vi Text Editor – Discover a powerful Linux based text editor.
- Wildcards – Also referred to as globing, this is a means to refer to several files in one go.
- Permissions – Learn to identify and change the permissions of files and directories and what the consequences of these are.
- Filters – An introduction to various commands that allow us to mangle data in interesting and useful ways.
- Grep and Regular Expressions – Master a powerful pattern matching language that is useful for analyzing and processing data.
- Piping and Redirection – Join commands together in powerful combinations.
- Process Management – See what is currently running on your Linux system and what state the system is in, learn how to kill programs that have hung and put jobs in the background.
- Scripting – Be happy. Get the computer to do tedious and repetitive tasks for you.
- Cheat Sheet – A quick reference for the main points covered in this tutorial.
- Administration
- Memory Management
- Networking
- Email System
- File System and File Management
- Utilities
Nagios installation step by step in centos/redhat or fedora part 1
What is Nagios? Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems beforeRead More »
Centos FTP command not found : Linux FTP install
FTP command not found # ftp 192.168.1.56 -bash: ftp: command not found # yum -y install ftp The above commandRead More »
File transfer in Linux : FTP in linux : Shell script to file trnsfer
This script use to transfer file from linux to ftp server. You can automate this file transfer by putting thisRead More »
Linux Shell Script To Ftp File To Server
You need to create a shell scrip, needed to call from a crontab, to contact a FTP server and put orRead More »
Linux Cron Job - Schedule Job in linux: crontab
In all Operating system there option to schedule a job/activity that should be run on particular time interval. Here isRead More »
Email alert on disk space outage in linux
For Send mail Tutorial Click Here Need to be installed sendmail ( yum install sendmail) and mailx (yum install mailx)Read More »
Stop firewall services centos : linux firewall service stop at startup
Check the Status of The Iptables IPv4 Firewall Run the following command to check the status of the iptables IPv4 firewall :Read More »
install ssh on centos
SSH- SECURE SHELL It is used to Connect to the remote system through secure shell. It giveyou a copy of remote shell on your desktop.YouRead More »
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Mounting a Windows (cifs) share on centos gives us a “Mount.cifs cannot allocate memory” error. Executing a command like this:Read More »
Changing centos/redhat run level init 3
What is a runlevel ? Runlevel is the preset state in which a Linux system operates. Below mentioned are theRead More »
Change HostName From Command Line Linux
To change the hostname, follow the steps shown below. 1. Use hostname command to Change Hostname In this example, we’llRead More »
TOP command in Linux
top provides an ongoing look at processor activity in real time. It displays a listing of the most CPU-intensive tasks onRead More »
find the number of CPU cores on Linux
Multi-core CPU processors are common nowadays, including dual-core processors (e.g., Intel Core Duo), quad-core processors (e.g., Intel Core i5), andRead More »
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THATRead More »
phpmyadmin access denied for ip centos : give phpmyadmin access to ip
To enable your system to give you the login prompt please do the following: Please login to your system usingRead More »