How to install a program on Ubuntu? For example: master pdf editor or any other program =>open terminal type the following command wget http://get.code-industry.net/public/master-pdf-editor-4.0.10_i386.deb Then use dpkg tool to install it. sudo dpkg -i master-pdf-editor-*.deb sudo dpkg -i master-pdf-editor-*.deb If there’s any dependency error, then simply run the command below to fix it. sudo apt -f install How to un-install a program on Ubuntu? For example: master pdf editor 4 or any other program you wish to un-install => open terminal type the following command sudo apt-get remove master-pdf-editor [enter] it will ask for password: [enter password] Un-install starts ---------------------------------------------- OR---------------------------- =>open terminal type the following command sudo apt-get purge master-pdf-editor [enter] it will ask for password: [enter password] Un-install starts =======...