rake, command not found 错误

find . -name rake

找到redmine中的rake，我的是在$HOME/redmine-1.2.1-1/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/

然后在命令行中输入：

export PATH=$PATH:$HOME/redmine-1.2.1-1/ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/