Class09 Answer:

Enhance Ubuntu

The main idea here is to setup a development environment with all the packages I might need.

I typed a large shell command:

sudo apt install autoconf bison build-essential libssl-dev      \
libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm3 \
libgdbm-dev curl wget ruby ruby-dev libbz2-dev  libyaml-dev 

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