apt-get versus gem

[thufir]

I installed ruby-full assuming this would include rake, which it didn't:


thufir at arrakis:~$ 
thufir at arrakis:~$ rake
The program 'rake' is currently not installed.  You can install it by 
typing:
sudo apt-get install rake
bash: rake: command not found
thufir at arrakis:~$ 


This is a relatively common package so is distributed through apt-get.  
Is there a problem with installing rake through rubygems?

If I install some packages through rubygems, does that create a conflict 
if some of them are installed via apt-get (such as rake)?  For instance, 
apt-get and rubygems might be at different version numbers.

How do others deal with ruby packages?



thanks,

Thufir