Process::UID.change_privilege(user) â fixnum
Class Public methods
Change the current process's real and effective user ID to that
specified by user. Returns the new user ID. Not available on all
platforms.
[Process.uid, Process.euid] #=> [0, 0]
Process::UID.change_privilege(31) #=> 31
[Process.uid, Process.euid] #=> [31, 31]