1: download mgltools from autodock downloading website. a: choose the one with the "_install" at the end 2: give executing permissions to this newly downloaded program: chmod 777 mgltools_Linux-x86_64_1.5.6_install 3: run the program: ./mgltools_Linux-x86_64_1.5.6_install 4: go through the wizard 5: find where you chose to install it, and open the README file a: copy bash path from the README 6: add the path to .bashrc sudo nano ~/.bashrc 7: make sure to update, upgrade, autoremove all Ubuntu OS software 8: exit out of the terminal; open a new one; type "adt" and see if it works