Error Message When Installing Rubygems in Tutorial

Question

I'm in the beginning stages (Section 1.2.2) of Hartl's RoR tutorial and, after installing Ruby, can't get RubyGems installed appropriately. See sequence below:

Hansell-Shooks-MacBook-Pro:~ hansellshook$ rvm install 1.9.2
Installing Ruby from source to: /Users/hansellshook/.rvm/rubies/ruby-1.9.2-p290, this may take a while depending on your cpu(s)...

ruby-1.9.2-p290 - #fetching 
ruby-1.9.2-p290 - #extracted to /Users/hansellshook/.rvm/src/ruby-1.9.2-p290 (already   extracted)
Fetching yaml-0.1.4.tar.gz to /Users/hansellshook/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/hansellshook/.rvm/src
Configuring yaml in /Users/hansellshook/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/hansellshook/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/hansellshook/.rvm/usr
ruby-1.9.2-p290 - #configuring 
ruby-1.9.2-p290 - #compiling 
ruby-1.9.2-p290 - #installing 
Removing old Rubygems files...
Installing rubygems-1.8.10 for ruby-1.9.2-p290 ...
Installation of rubygems completed successfully.
ruby-1.9.2-p290 - adjusting #shebangs for (gem irb erb ri rdoc testrb rake).
ruby-1.9.2-p290 - #importing default gemsets (/Users/hansellshook/.rvm/gemsets/)
Install of ruby-1.9.2-p290 - #complete 
Hansell-Shooks-MacBook-Pro:~ hansellshook$ rvm --create 1.8.7-p352@rails2tutorial 
Hansell-Shooks-MacBook-Pro:~ hansellshook$ rvm --create use 1.9.2-p290@rails3tutorial
Using /Users/hansellshook/.rvm/gems/ruby-1.9.2-p290 with gemset rails3tutorial
Hansell-Shooks-MacBook-Pro:~ hansellshook$ rvm --default use 1.9.2-p290@rails3tutorial
Using /Users/hansellshook/.rvm/gems/ruby-1.9.2-p290 with gemset rails3tutorial
Hansell-Shooks-MacBook-Pro:~ hansellshook$ which gem
/Users/hansellshook/.rvm/rubies/ruby-1.9.2-p290/bin/gem
Hansell-Shooks-MacBook-Pro:~ hansellshook$ [sudo] ruby setup.rb
-bash: [sudo]: command not found

After reading the sequence, it seems to me the installation already took place when installing Ruby 1.9.2. However, I can't proceed any further from this point (which is to install Rails). Anyone know what I might be missing?

Answer 1

Don't type in the brackets around sudo ; that's to indicate the sudo is optional/may not be necessary/may not apply to your system. You're running a Mac, so you can use it.