install_ruby.sh

install_ruby.sh

#!/bin/bash
# Bash Menu Script Example
sudo apt update
PS3='Please enter your choice: '
options=("Just Ruby" "Rbenv" "RVM" "Quit")
select opt in "${options[@]}"
do
    case $opt in
        "Option 1")
            echo "you chose choice 1"
            sudo apt install ruby-full
            ruby --version
            echo "installation is completed!"
            break
            ;;
        "Option 2")
            echo "you chose choice 2"
            sudo apt install git curl libssl-dev libreadline-dev zlib1g-dev autoconf bison build-essential libyaml-dev libreadline-dev libncurses5-dev libffi-dev libgdbm-dev
            curl -sL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer | bash -
            echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
            echo 'eval "$(rbenv init -)"' >> ~/.bashrc
            source ~/.bashrc
            echo "Ruby version 2.5.1 will be installed as default"
            rbenv install 2.5.1
            rbenv global 2.5.1
            ruby --version
            echo "installation is completed!"
            ;;
        "Option 3")
            echo "you chose choice $REPLY which is $opt"
            sudo apt install curl g++, gcc, autoconf, automake, bison, libc6-dev, libffi-dev, libgdbm-dev, libncurses5-dev, libsqlite3-dev, libtool, libyaml-dev, make, pkg-config, sqlite3, zlib1g-dev, libgmp-dev, libreadline-dev, libssl-dev
            gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
            curl -sSL https://get.rvm.io | bash -s stable
            source ~/.rvm/scripts/rvm
            rvm install 2.5.1
            rvm use 2.5.1 --default
            ruby --version
            echo "installation is completed!"            
            ;;
        "Quit")
            break
            ;;
        *) echo "invalid option $REPLY";;
    esac
done