我在 RoR 教程的第 6 章,似乎无法让命令“tail -f log/development.log”工作。使用带有 RVM 的 Mac OS X 10.6.6、Ruby 1.9.2、Rails 3.0.3。我正在尝试在一个 sanboxed Rails 控制台中运行它,这是正在发生的事情的输出:
Trenton-Scotts-MacBook-Air:sample_app TTS$ rails c --sandbox
Loading development environment in sandbox (Rails 3.0.3)
Any modifications you make will be rolled back on exit
ruby-1.9.2-p136 :001 > tail -f log/development.log
SyntaxError: (irb):1: syntax error, unexpected tIDENTIFIER, expecting keyword_do or '{' or '('
tail -f log/development.log
^
from /Users/TTS/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/commands/console.rb:44:in `start'
from /Users/TTS/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/commands/console.rb:8:in `start'
from /Users/TTS/.rvm/gems/ruby-1.9.2-p136/gems/railties-3.0.3/lib/rails/commands.rb:23:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
ruby-1.9.2-p136 :002 >
有什么想法吗?