title: Copy files from one user home directory to another user home directory in Linux
body: <p>I have the logins and passwords for two linux users (not root), for example user1 and user2.</p>
  
  <p>How to copy files 
  from <strong>/home/user1/folder1</strong> to <strong>/home/user2/folder2</strong>, using one single shell script (one single script launching, without manually switching of users).</p>
  
  <p>I think I must use a sudo command but didn't found how exactly.</p>