tri-boot debian, debian-without-dm, and windows with newer debian using partitions from older debian?

[Anubhav Yadav <anubhav@icoer.in>]

Hello List, 

I want to learn and master the command line of Linux. I want to be
comfortable at editors like vim. I am justing getting intrigued by the
command line. 

So I have decided to force myself to use the command line by installing
a gdm-less debian on my laptop. 

The laptop currently has a windows and debian dual boot. My current
debian partition is such that /, /home, /usr, /var and /temp are all on
a different partition. 

Can I install debian again on my machine (without any desktop manager)
on a separate partition for / and use the /home, /usr, /var and /temp
from my current debian installation?
-- 
Regards, 
Anubhav Yadav,
Computer Engineering Final Year Student,
Imperial College of Engineering and Research,
Pune.