As the question asks I want to learn how to prompt users' password for nonsudo commandsEDIT: I think that I could not tell it clearly according to comments, so I will elaborate my request with example, for example I open terminal and type  ls -l  command, after pressing Enter it should ask me user password I want this for every non-sudo commands.
Prompt user to enter for his/her user password to execute non sudo terminal command
command line;terminal;password