Apply password in some command

hello guys,
I need some command,script or anythng which will help me to prompt for a password if I give some common unix command. We need this command to restrict the access to few users only like for tip command. That wenever i give TIP command, it will ask for password and only autherized users can use this command..
Any workaround?

Take a look at sudo or RBAC, make the command only runnable by say root (only if the command requires it) or a another account and then use sudo to allow the user to run it.