Linux Basics

Linux Basics

Hi,

This presentation contains some basic linux commands. I have put screenshots to make it easily understand.

Please send me your comments to Ankit Mehta ankitmehta21@gmail.com , it will help me to improve future presentations.

Thanks,
Ankit
ankitmehta21@gmail.com

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ankitmehta21@gmail.com

April 07, 2013
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  1. Ankit Mehta ankitmehta21 @gmail.com LINUX – GETTING STARTED ankitmehta21@gmail.com

  2.  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. ankitmehta21@gmail.com LINUX INSTALLATION
  3.  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 ankitmehta21@gmail.com LOGIN NAME
  4.  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 ankitmehta21@gmail.com PASSWORD
  5.  Following network is used for this training ankitmehta21@gmail.com 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
  6.  Open putty and enter destination IP address it will

    popup following screen as per your configuration ankitmehta21@gmail.com CONNECTING TO LINUX
  7.  Once you get previously mentioned screen enter desired username

    to login to Linux (Make sure that user already exist on Linux system) ankitmehta21@gmail.com ENTER USERNAME
  8.  After entering username enter password belongs to that user

    ankitmehta21@gmail.com ENTER PASSWORD
  9.  Once you login to Unix system you will see

    prompt $, $ is the indication that system is waiting for your command ankitmehta21@gmail.com UNIX PROMPT $
  10.  If you want to know the system date of

    UNIX system you can pass date command ankitmehta21@gmail.com DATE
  11.  To view any text file cat command is used

    followed by file name ankitmehta21@gmail.com CAT
  12.  To view the file and directory listing you can

    use ls -l command ankitmehta21@gmail.com LS –L
  13.  To change the unix system password passwd command is

    used. ankitmehta21@gmail.com PASSWD
  14.  To stop execution of any command Ctrl-C can be

    used ankitmehta21@gmail.com CTRL C
  15.  To view the calendar cal command can be used.

    ankitmehta21@gmail.com CAL
  16.  Who command can be used to view the list

    of connected users to Unix system ankitmehta21@gmail.com WHO
  17.  Get user activity details using finger command ankitmehta21@gmail.com FINGER

  18.  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