Allow standard (non-admin) user to update R by asking an admin user name + an admin password

[CroixJeremy2]

Hello,

updateR() prevents standard users to update R. It asks the password for the current user, but when the user is not an admin, then I get this error message:

Error in updateR() : 
  current user XXXXX does not have admin privileges
In addition: Warning message:
In system(command, intern = TRUE) :
  running command 'echo 'ekfvb' | sudo -S -l' had status 1

Would that be possible to update the updateR function by asking an admin user name + an admin user password, if the current user is a standard (non-admin)?

Thanks in advance for your response,
Best regards,