apt-get -y install build-essential zlib1g zlib1g-dev libxml2 libxml2-dev
libxslt-dev locate libreadline6-dev libcurl4-openssl-dev git-core libssl-dev
libyaml-dev openssl autoconf libtool ncurses-dev bison curl wget postgresql
postgresql-contrib libpq-dev libapr1 libaprutil1 libsvn1 libpcap-dev
libsqlite3-dev