How can I switch to ruby 1.9.3 installed using Homebrew?

Question

I have installed ruby 1.9.3 using hombrew brew install ruby But default 1.8.7 is still used. How can I switch osx to use 1.9.3 as default ruby?

Accepted Answer

I suggest you take a look at rvm. You can then set it as default with `rvm use 1.9.3 --default`

But if you are happy with your homebrew install.

Then just change the precedence of directories in the `PATH`

Here is my /etc/paths

```
# homebrews should always take precedence
/usr/local/bin

# the default stack
/usr/bin
/bin
/usr/sbin
/sbin
```

This is important generally for homebrew, else the system version of git, ruby, pg_admin,... will all be used instead of the brew version.

if you say `which -a ruby` you'll see all the installed rubies, and the precedence in the `PATH`

eg.

```
$ which -a ruby
/Users/matthew/.rvm/rubies/ruby-1.9.3-p0/bin/ruby
/Users/matthew/.rvm/bin/ruby
/usr/bin/ruby
```

UPDATE: I now don't think you should change `/etc/paths`

Instead you need to check which of `.profile`, `.bashrc`, or `.bash_login` is being loaded in your shell, and just add `/usr/local/bin` to your path.

For me, I only have a `.profile`. You can create that file if none of those files already exist in your home directory.

```
# homebrews should always take precedence
export PATH=/usr/local/bin:$PATH
```

Solution