changing the passwd on a Linux-box

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dear Gentlemen, dear Linux-experts,


i am running opensuse 12.3 on a notebook - and i must confess that i am fairly new to Linux and all that OpenSource-things


what is the problem: i have a passwd - and i want to change it.

the question is: how to change the master- or root-passwd

is this doable?

look forward to hear from you

greetings