simpliest way to calculate octal?

[Zhang Weiwu]

Hello. Pretty newbie question again:)

Today I found I cannot calculate what is the octal form of 0xa04e.

First I thought xcalc should do the work, but it seems only deal with 
decimal.

I have perl, tcsh, python interprater. It is likely that they are all 
capable of this kind, but what are the commands for them? What's the most 
convenient way?

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