anita@anitas-computer:~$ echo $PATH
/var/lib/gems/1.8/gems:/home/anita/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
anita@anitas-computer:~$ cd sandbox
anita@anitas-computer:~/sandbox$ ls
anita@anitas-computer:~/sandbox$ rails QuickBite
The program 'rails' is currently not installed.  You can install it by typing:
sudo apt-get install rails
Make sure you have the 'universe' component enabled
bash: rails: command not found
anita@anitas-computer:~/sandbox$