Can't Install RVM

[Alexander Silver]

Hi all

This is probably a very simple thing to fix but i am a bit of a noob at this.

I am trying to install RVM but constantly get this error

imac-75:~ Alexander$ \curl -L https://get.rvm.io | bash -s stable --rails # Or, --ruby=1.9.3
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   184  100   184    0     0    194      0 --:--:-- --:--:-- --:--:--   238
100 13466  100 13466    0     0   7559      0  0:00:01  0:00:01 --:--:-- 43720
Please read and follow further instructions.
Press ENTER to continue.
mkdir: /Alexander.rvm/src: Permission denied

Can anyone help? Would be much appreciated :) 

[mpapis]

try: sudo mkdir -p /Alexander.rvm ; chown -R $USER: /Alexander.rvm