sudo add-apt-repository ppa:jre-phoenix/ppa

sudo apt-get update

sudo apt-get install pgld pglcmd pglgui

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pgld
E: Unable to locate package pglcmd
E: Unable to locate package pglgui

sudo apt-get install pgl

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pgl