Ubuntu Style APT-GET INSTALL $sudo apt-get install gprolog RH style yum install #yum install gprolog MANUAL INSTALLATION 1.download .tar.gz gnu prolog from http://www.gprolog.org/#download 2.untar the file using command tar xvfz filename.tar.gz 3.cd into gnu prolog and then src folder 4.type ./configure 5.make 6.sudo make install 7.make clean 8.set path variable by typing PATH=$PATH:/usr/local/gprolog-xxx/bin; export PATH Window Installation Download from http://www.swi-prolog.org/download/stable