$ rbenv global 3.2.2                                                                                                                                                          
 $ rbenv -v                                                                                                                                                                  
    rbenv 1.2.0-87-ge8b7a27
 $ ruby -v                                                                                                                                                                      
    ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x86_64-linux]
 $ rails -v                                                                                                                                                                  
    Rails 7.1.3.2
 $ rbenv global 3.3.0                                                                                                                                                            
 $ rbenv -v                                                                                                                                                                      
    rbenv 1.2.0-87-ge8b7a27
 $ ruby -v                                                                                                                                                                       
    ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [x86_64-linux]
 $ rails -v                                                                                                                                                                    
    rbenv: rails: command not found

    The `rails' command exists in these Ruby versions:
      3.2.2

 $ gem install rails                                                                                                                                                         
    Successfully installed rails-7.1.3.2
    1 gem installed
 $ rbenv rehash                                                                                                                                                           
 $ rails -v                                                                                                                                                                      
    rbenv: rails: command not found

    The `rails' command exists in these Ruby versions:
      3.2.2

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-doctor | bash                                                                                         
Checking for `rbenv' in PATH: /home/joyoy/.rbenv/bin/rbenv
Checking for rbenv shims in PATH: OK
Checking `rbenv install' support: /home/joyoy/.rbenv/plugins/ruby-build/bin/rbenv-install (ruby-build 20240319-2-g683dc59)
Counting installed Ruby versions: 1 versions
Auditing installed plugins: OK

echo $PATH                                                                                                                                                                  
/home/joyoy/.rbenv/shims:/home/joyoy/.rbenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin