[plug] Changing ownership of files

[Richard]

I recently had a little trouble with the everyday account I use on my home 
system. I ended up copying all my personal files to /root (as root), deleting 
and re-creating the offending account and then copying the files back into 
the home dir of the now new account (I know I should of asked for help before 
it came to that, but you live and learn :) The only problem is that root now 
seems to own all the files I regularly work with and open office, especially, 
won't allow me to save changes, even with permissions set to 777. OO works 
with the files fine from the root account, so the problem seems to be 
entirely one of ownership. Is it possible, from root, to set the ownership of 
a file? Or can anyone think of another way around this?