|Most linux distros offer a way to let a "user" log on to the system. That is supposed to prevent you wrecking the system or more importantly a hacker to gain access.|
What the terminal (or shell) command I said was sudo. That is a say to access the root permission to allow you to do things like wreck your system.
Open terninal and use man sudo or man su. Man is the man pages, short for manual pages. They kind of assume you know what you are doing rather than a simple learners guide.
Repost your linux questions in the linux sections,
Playing to the angels
Les Paul (1915-2009)