Linux Tutorial

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

 



Runing Asterisk command from bash script -shell script

bash: #!/bin/sh asterisk -rx ‘command’ if you want to see the result of a command in a file: asterisk -rx
Read More »

Installing LAMP on RHEL or Centos 7

Installing LAMP on RHEL or Centos 7  Install httpd services – Web service # yum install httpd Restart httpd resvices
Read More »

installation and configuration of fail2ban on CentOS 6

What is Fail2Ban Fail2Ban is an intrusion prevention software framework that protects computer servers from brute-force attacks Fail2ban is a
Read More »

What Linux is?

Free Unix Like Open Source Network operating system  
Read More »

generate CSR (Certificate Signing Request) on Linux

CSR stands for Certificate Signing Request. This is generated on the server where the certificate will be used on. A CSR
Read More »

Click to Dial or php API to dial from asterisk

copy the below code to a file (click2call.php)  to the webdirectory. executes as  :  http://ipaddress/click2call.php??exten=SIP/100&number=9899338979
Read More »

Linux Server Hardening Security Tips

Linux Server Hardening Security Tips Linux Server Hardening Checklist and Tips The following instructions assume that you are using CentOS/RHEL
Read More »

Shell Script to copy files in a folder

A shell script to find all the files in the given path recursively and then copying them in the target
Read More »

Dialer Support - S Net Expert Technology

We provide Asterisk Support in all over INDIA • Installation / maintenance / configuration • Inbound/outbound/predictive dialing solution for small
Read More »

Install LAMP Server (Apache, MySQL, PHP) On RHEL, CentOS

Apache HTTP Server Test Page powered by CentOS - Mozilla Firefox_001LAMP is a combination of operating system and open-source software stack. The acronym LAMP is derived from first letters of
Read More »

mkdir : linux command

  The mkdir command in the Unix, DOS, OS/2, and Microsoft Windows operating systems and in the PHP scripting language
Read More »

UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY means there is some file system error in the disk. Try this: fsck /dev/sda1 (where /dev/sda1 is
Read More »

Putty : Connect Linux Server from Windows Computer

Putty : Connect Linux Server from Windows Computer Here is video to show how to connect Linux server from Window
Read More »

Disable SELinux in Linux

SELinux  – Security-Enhanced Linux Linux is regarded as one of the most secure operating systems you can use today, that is
Read More »

What is Process in Linux

What is a process? Except the kernel, Everything on a Linux system runs in the context of a process. Process
Read More »

Older Entries » For any query or issue, feel free to discuss on http://discuss.eduguru.in