Linux – getting started

Ankit Mehta

ankitmehta21

@gmail.com

LINUX – GETTING

STARTED

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Linux is freely available operating system. You can download

any of the distribution from CentOS, Fedora and if you have

very low end system you can go with DSL (Damn Small Linux)

At the beginning level I would suggest you to start installing

and using Linux on virtual machine, once you are comfortable

with operating system you can move to install it as primary or

secondary operating system.

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LINUX INSTALLATION

Choosing a login name is Linux should follow

Login name must be more than two characters long

Login name can contain lowercase and numbers

Login name must start with an lower case alphabet

Login name must not conflict with another existing username

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LOGIN NAME

Linux password choosing guidelines

Password must have atleast 6 characters (This can be bypassed but

as per the guidelines you must follow it)

Password must contain alphabet, numeric and/or special character.

Password are case sensitive so “Creative” is different than “creative”

and “cr3@t1v3”

Some other guidelines

Avoid using easily guessed password like your family name, your

library card number your pet name.

Avoid using dictionary words

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PASSWORD

Following network is used for this training

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CURRENT NETWORK

Type OS IP Address

Host Operating System Windows 7

(Connecting with putty)

192.168.188.1

Guest Operating System Cent OS 6 (X64) 192.168.188.140

Open putty and enter destination IP address it will popup

following screen as per your configuration

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CONNECTING TO LINUX

Once you get previously mentioned screen enter desired

username to login to Linux (Make sure that user already exist

on Linux system)

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ENTER USERNAME

After entering username enter password belongs to that user

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ENTER PASSWORD

Once you login to Unix system you will see prompt $, $ is the

indication that system is waiting for your command

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UNIX PROMPT $

If you want to know the system date of UNIX system you can

pass date command

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DATE

To view any text file cat command is used followed by file

name

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CAT

To view the file and directory listing you can use ls -l

command

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LS –L

To change the unix system password passwd command is

used.

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PASSWD

To stop execution of any command Ctrl -C can be used

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CTRL C

To view the calendar cal command can be used.

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CAL

Who command can be used to view the list of connected users

to Unix system

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WHO

Get user activity details using finger command

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FINGER

In next presentation I will add some more commands and then

we will work on shell scripting and more from administration

front.

Kindly let me know your reviews and comments so I can

improve future presentations.

Write me at : Ankit Mehta ankitmehta21@mail.com

ankitmehta21@gmail.com

THANK YOU