file system check, and defrag

[Kordula Martin <kordula@kordula.de>]

Hi all,

being real new to Debian, and fairly new to Linux, I have the following 
questions -

I have 3.0r1 Woody installed with ext3 file systems and would like to 
periodically check, and then defrag, the file system(s).

1.  How (and what is the best way) to do this?
2.  Other distributions I've had installed, run a file system check at 
bootup.  Why not Debian?
3.  How can I setup Debian to check at bootup?

Thanks in advance!
Kordula