because if you get use of this approach, when you go to work on a machine that doesn't have this alias, immagine what you coul do if you write rm /etc/apache/* because you are sure (or you don't pay attention) that would ask you to confirm.
Since i read that article (it was on a magazine), i try to don't use this kind of aliases and to pay more attention on what i'm doing.
I found what i was really meaning: http://unix.about.com/library/weekly/aa020501c.htm
Pier
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