How to rename a file in linux

using mv(move) you can rename files/directory

If i want to rename file1 as file2

$mv file1 file2 

 another way to rename file names

$cp file1 file2 (it will copy file1 content to file2)
now you can remove file1
$rm file1
 

cp: omitting directory Error

When you try to copy files you may get error :  cp: omitting directory Error

To avoid this error you may enter command as  cp -r   source_file Destination_file

How to Download Entire website Database

If you want to download entire website content(Images, Videos Etc), there are few tools.
I tried few tools but A1 Website Download, really works for me. 
For more details : http://www.microsystools.com/products/website-download/.

Install VMWare Workstation On Ubuntu

when you download VMWare -workstation buldle file from internet, apt-get install is not possible. For this you need to follow below steps
1. open terminal, goto download folder(where exactly your VMWare -workstation bundle file is downloaded).
2. type # sudo sh
Ex: # sudo sh VMware-Workstation-6.5.0-118166.i386.bundle
3. Then its gave message : Extracting VMware Installer...done.
open vmware installation window.

 

Connect(RDP) UBUNTU from Windows Machine

Open Terminal and type below command 


sudo apt-get install xrdp


after install you can able to access/RDP Ubuntu from Windows and windows from Ubuntu also

If you got any problem while connecting you can install gnome session fallback


 sudo apt-get install gnome-session-fallback

Install GLXinfo In Ubuntu

Open Terminal and type :  

# apt-get install mesa-utils

History Of Linux

1. In 1965 three Companies GE,MIT,AT&T start a  project called MULTICS(Multiplexed Information and Computing System).
1969 -  Its dropped because of its 100% Assembly Language(System Language). Because Who knows assembly language those people only can able to use it.

2. In 1969 two Engineers dennis ritchie and ken thompson start the project called UNICS.
 In the same year its also dropped because it was 80% of C language 20% Assembly Language.

3. In 1973 Same Engineers starts the same project again, This time they did total project in C Language. The name : UNIX.    

How to Take a Screenshot in Linux (Ubuntu)

Use PrintScreen Key to capture entire window,
 

 Use Atl+PrintScreen to Capture Active Window.

 

If you want to Capture particular reason : Applications —> Accessories —> Take Screenshot.