1. magic word is called sudo
The sudo command is a program for some Unix and Unix-like computer operating systems that allows users to run programs with the security privileges of another user (normally the superuser, a.k.a. root).
it is recommend gksudo or kdesu for graphical applicationsCode:man sudo
2. sound
search the following line and add your userCode:sudo nano /etc/group
audio:x:29:john


