How to install ruby on Mac using rbenv?-CodePudding

My problem is ruby -v is not showing the ruby version that I installed (that is 3.0.0).

I installed ruby using following commands using homebrew

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

brew install rbenv ruby-build
rbenv install 3.0.0
rbenv global 3.0.0

Now after this when I check for ruby installation I cant find it. also I'm getting following output for these commands.

SSVFWER-M-91FL:~ ssvfwer$ which -a ruby
/usr/bin/ruby

SSVFWER-M-91FL:~ ssvfwer$ ruby -v 
ruby 2.6.8p205 (2021-07-07 revision 67951) [universal.x86_64-darwin21]

SSVFWER-M-91FL:~ ssvfwer$ rbenv install 3.0.0
rbenv: /Users/ssvfwer/.rbenv/versions/3.0.0 already exists
continue with installation? (y/N) n

SSVFWER-M-91FL:~ ssvfwer$ ruby -v 
ruby 2.6.8p205 (2021-07-07 revision 67951) [universal.x86_64-darwin21]

SSVFWER-M-91FL:~ ssvfwer$ rbenv versions
  system
* 3.0.0 (set by /Users/ssvfwer/.rbenv/version)

Can you help me with what I'm missing out here ? why us ruby -v not showing 3.0.0 as ruby version because I want to use that ruby. How do I switch ?

CodePudding user response：

It looks like you skipped step 2, rbenv init. rbenv is tightly integrated with your shell and some shims must be installed by you.

You can debug it with curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash