compiling

If you must have the absolute bleeding edge of everything, you can compile Processing from Subversion.

• Open a terminal (Applications → Accessories → Terminal)
• Install the build packages that are needed
  • Ubuntu/Debian: sudo apt-get install build-essential subversion perl
• Download the latest Processing from Subversion

svn co svn://processing.org/trunk/processing

• Change to the build directory

cd processing/build/linux

• Build Processing

./make.sh

• Run it

./run.sh

• Open a terminal (Applications → Accessories → Terminal)
• Change to the build directory

cd processing/build/linux

• Run it

./run.sh

• Open a terminal (Applications → Accessories → Terminal)
• Change to the Processing directory

cd processing

• Run subversion

svn update

• Change to the build directory

cd build/linux

• Remove the old work directory

rm -rf work

• Build Processing

./make.sh