Ubuntu & Debian
Ubuntu is Debian-based thus they share much code and packages.
For these OSs, the complete list of steps is available (and has been thoroughly checked), including ODE's compilation and installation, which are the major obstacles in the process and may scare users unaccustomed to the command line and software compilation.
Ubuntu's latest long-term-support release is 12.04 (a.k.a. Precise Pangolin) and was published on April, 2012.
Run the following commands in sequence and you'll have ARS ready to go. They are grouped as: a) Python basic packages, b) VTK, c) ODE, d) ARS:
sudo apt-get install python-dev python-support python-pip sudo apt-get install python-numpy cython sudo apt-get install libvtk5.8 python-vtk sudo apt-get install make autoconf automake libtool g++ pkg-config wget https://downloads.sourceforge.net/project/opende/ODE/0.12/ode-0.12.tar.bz2 tar xf ode-0.12.tar.bz2 cd ode-0.12/ ./configure --enable-double-precision --with-trimesh=opcode --enable-new-trimesh --enable-shared make sudo make install cd bindings/python/ python setup.py build_ext sudo python setup.py install sudo ldconfig sudo pip install ARS
Notice how ODE is the software piece that takes more commands and time to install. Fortunately, ARS is the exact opposite.
Not all users will need to run ldconfig but it doesn't hurt if you do. See :ref:`ODE Import Error<ode_import_error>` for more information.
Debian's next stable version is 7 (a.k.a. Wheezy) and is about to be released in the first half of 2013. Debian 6 (a.k.a. Squeeze) had old versions of Python and VTK thus was not considered for these 'easy install' instructions.
The required steps are identical as those above, with one caveat:
Debian might not have sudo available or the OS user might not be in the sudo group. The solution (you need the root user password) for these is:
su apt-get install sudo adduser <username> sudo exit
and then logout and login again.
An alternative is to replace sudo <command> with su -c '<command>'.