configuration.php is not writable install joomla in linux

When Installing Joomla ! , you might see the following error:-

configuration.php Writable       No 

You can still continue the installation as the configuration settings will be displayed at the end. You will have to manually upload the code. Click in the text area to highlight all of the code and then paste into a new text file. Name this file 'configuration.php' and upload it to your site root folder. 

the solution to this problem is as follows:-

1- run your terminal.

2- Type "sudo su" (without quotes).

3- Enter your password.

4- type "nautilus" (without quotes), a new window will be opened.

5- Navigate from this window to your "htdocs" folder it is by dafult "File

System/opt/lampp/htdocs" and the open the folder where you extracted joomla.

6- create an empty file named "configuration.php".

7- right click on the file >> properties >> permissions tab and set permission to

Group and Others as "Read and Write".