$ sudo rpm -ivh http://swiftsignal.com/packages/centos/6/x86_64/the-silver-searcher-0.13.1-1.el6.x86_64.rpm $ apt-get install software-properties-common # (if required) $ apt-add-repository ppa:mizuno-as/silversearcher-ag $ apt-get update $ apt-get install silversearcher-ag