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install zlib1-dev
libxslt
libreadline-dev
openssl
i


apt-get -y update
apt-get -y install git build-essential zlib1g-dev libssl-dev libreadline6-dev libyaml-dev

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

rbenv install 2.2.2
o=

 sudo apt-get install postgresql postgresql-contrib