Git is a free distributed revision control, or software source code management project with an emphasis on being fast. Git was initially designed and developed by Linus Torvalds for Linux kernel development.
Every Git working directory is a full-fledged repository with complete history and full revision tracking capabilities, not dependent on network access or a central server.
# wget http://www.kernel.org/pub/software/scm/git/git-1.6.1.tar.gz
# tar zxvf git-1.6.1.tar.gz
# cd git-1.6.1
# make && make install
# git clone git://central.server/path/to/proj.git