Refer:
https://www.youtube.com/watch?v=nVt3Rst-2H8&list=PL7B7FA4E693D8E790&index=1
Command for sudo user:
sudo su - <userName>
Copying file from once location to another Location:
Go the source folder directory of the file which you want to copy and then use below command:
cp <sourceFileName> <Pathofthe destinationFolderToCopytheFiles>