Some system related tools like zypper, yast, ldconfig could not be accessed by usual users. Only when log in as root user can you find those commands.
To stopping the GUI and using the terminal on Ubuntu, do:
sudo /etc/init.d/gdm stop
then, press "Ctrl+Alt+F1"
On the Suse server, to build the package Theano to work with Python, you have to compile the Python to shared library. That's to build Python in following steps:
./configure --enable-shared --prefix=xxxx
sudo make install
Otherwise, it probably gives the error "