title: Difference between read & execute, file permission
body: <p>This may sound like a pretty basic question, but I'm a bit stumped on what constitutes as "reading" a file, and "executing" a file.</p>
  
  <p>For example: 
  User 1 buys a ticket from an online website, and wants to view the ticket (as a jpeg), which is displayed on the website. </p>
  
  <p>Is this considered to be "reading" the folder? or is this actually executing the folder? </p>
  
  <p>If the user permissions is set to "read only," that means the user CAN access the file via an action on the website(in this case, an image of their purchased ticket), but cannot access the file via direct url link right? Such as, www.exampletickets.com/user1/tickets</p>