install ruby debian 2

$ sudo ls -a

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

[sudo] password for johndoe:
.  ..  .bash_logout  .bashrc  .profile
$ ruby -v
ruby 1.8.7 (2010-08-16 patchlevel 302) [x86_64-linux]
$ sudo apt-get install build-essential
Reading package lists... Done
Building dependency tree
Reading state information... Done
build-essential is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.
$ sudo apt-get install curl
Reading package lists... Done
Building dependency tree
Reading state information... Done
curl is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.
$ sudo apt-get install libssl-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libssl-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.
$ curl -L get.rvm.io | bash -s stable
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 10009  100 10009    0     0  17711      0 --:--:-- --:--:-- --:--:--     0
bash: line 387: /usr/local/rvm/RELEASE: Permission denied
$ source $HOME/.rvm/scripts/rvm
-bash: /home/johndoe/.rvm/scripts/rvm: No such file or directory
$