Find the size of your Farm, Web application, Site collection or the site

Today I am providing the Power Shell Script that is useful to show or get the size of each and every site and site collection as per user input and requirement.

Inputs

Other inputs - Script will ask different input on the basis of user choice. Please follow the instructions

Outputs

At the end of the script user will get the size of all sites/Site collection/web application/Farm.

Example-

To show result in power shell screen

.\scriptname.ps1

 to get output in a file

.\scriptname.ps1 | out-file “FilePath\Filename.txt”

Dependencies –

Run this script with Farm Account. Farm account is the user who installed SharePoint.

User should be Site collection administrator in all the sites.

User should have Shell Admin rights to run the scripts.
Run Management Shell as an Administrator. 
How to execute -
Copy this script and paste in Note pad.
Save this file as .ps1.
Run this script in SharePoint Management Shell. You can run this script in PowerShell as well after adding SharePoint snapin (Add-pssnapin *.sharepoint.*).
Follow on screen instructions.

FOR ANY HELP ON THIS SCRIPT USE "GET-HELP .\SCRIPTNAME.PS1 --FULL" AFTER SAVING THIS FILE.

https://drive.google.com/file/d/0BznVpoE_ln0AamFkQ0g2VlVYY00/view?usp=sharing