Is "ruby script/plugin" a command?

I was following an online tutorial to create an Ruby on Rails application on App Engine.

The开发者_JAVA技巧re is one command which other people can run, but it didn't run on my Ubuntu 10.10:

ruby script/plugin install http://svn.avdi.org/nulldb/trunk/

When I try to run it, it complains: ruby1.8: No such file or directory script/plugin (LoadError)

What is wrong with my computer?

ruby  -v  ==> 1.8.7
rails -v  ==> 2.3.10  
gem   -v  ==> 1.3.7

if using rails3, cd into your rails app root dir then use

rails plugin install http://url/of/your/package

If you are using Rails 3, you no longer have a script/plugin directory.

Rails 3 now runs commands through the "rails" script.

You can find your version of rails with rails -v

I had similar problem with rfacebook on rails 3 solution that worked for me:

cd \MyAppName\app

rails plugin install svn://rubyforge.org/var/svn/rfacebook/trunk/rfacebook/plugins/rfacebook

Have you tried just plain old script/plugin install http://svn.avdi.org/nulldb/trunk/ ? Also are you sure that you're in the correct directory?(the rails project main directory) And are you sure that you have the file script/plugin?

First of all make sure that you are running that command from the root of your rails app.