I am not sure but are you
A Star
Some say I'm dishonest and call me a cheat,
a no-good hoodwinker and full of deceit!
Using the asterisk sign, which is very similar to a star, in Unix is a sort of cheat as it can say anything. It can also be full of deceit as a bad manipulation of it can lead to very bad consequences ! "Full of deceit" can also be a reference to the use of asterisk in contracts, you know, the little line in the end of the page...
But I disagree, for I hold a good conscience
just ask my friend Deedee, she'll tell you it's nonsense
Not sure for the first part of the sentence but the Unix command "dd *" is nonsense.
The truth is I'm widely admired, don't you know
The definition of star people.
in fact many an artist before me will bow
Hollywood boulevard stars need the artists to bow before them.
Yet even though these ones my ego may stroke
Getting a star with your name on Hollywood boulevard can change a lot to your ego...
I've always got time for the ordinary folk
A star need to sign autographs, maybe ?
There are so many clues you may start to feel dizzy
To feel dizzy is very similar to faint. I don't really know in english but in french we can say "Voir des étoiles" which can be translate by "to see stars".
but this poem has helped me to keep my hands busy
I find that if I let my hands become idle
I develop bad habits that I just can't bridle
I don't really know for these ones.