July 9, 2021 . 1 MIN READ
Installing Ruby
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get -y install ruby2.1 ruby-switch ruby2.1-dev ri2.1 libruby2.1 libssl-dev zlib1g-dev
sudo ruby-switch –set ruby2.1
sudo apt-get update
sudo apt-get install ruby1.9.1 ruby1.9.1-dev \
rubygems1.9.1 irb1.9.1 ri1.9.1 rdoc1.9.1 \
build-essential libopenssl-ruby1.9.1 libssl-dev zlib1g-dev
sudo update-alternatives –install /usr/bin/ruby ruby /usr/bin/ruby1.9.1 400 \
–slave /usr/share/man/man1/ruby.1.gz ruby.1.gz \
/usr/share/man/man1/ruby1.9.1.1.gz \
–slave /usr/bin/ri ri /usr/bin/ri1.9.1 \
–slave /usr/bin/irb irb /usr/bin/irb1.9.1 \
–slave /usr/bin/rdoc rdoc /usr/bin/rdoc1.9.1
# choose your interpreter
# changes symlinks for /usr/bin/ruby , /usr/bin/gem
# /usr/bin/irb, /usr/bin/ri and man (1) ruby
sudo update-alternatives –config ruby
sudo update-alternatives –config gem
# now try
ruby –version
