Rubyonrails Bundle 器：找不到命令

我在一个vps、Ubuntu10.04、rails 3、ruby和mysql上托管，通过以下教程正确安装.如果运行bundle check或bundle install，则会出现错误"-bash:bundle:command not found".从gem list --local开始，我看到安装了"bundler(1.0.2，1.0.0)".

我不知道怎么了...

gem environment份申报表:

 RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.8.7 (2010-04-19 patchlevel 253) [i686-linux]
  - INSTALLATION DIRECTORY: /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8
  - RUBY EXECUTABLE: /opt/ruby-enterprise-1.8.7-2010.02/bin/ruby
  - EXECUTABLE DIRECTORY: /opt/ruby-enterprise-1.8.7-2010.02/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-linux
  - GEM PATHS:
     - /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8
     - /root/.gem/ruby/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

和echo $PATH个回报:

/opt/myruby/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/bin/gem:/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/:/root/.gem/ruby/1.8

和which gem个回报:

/usr/bin/gem

locate bundle份申报表:

/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/