Answers:
只是一个想法,列出已安装的软件包和grep来显示ruby或gems或其他内容:)
dpkg-获取选择
dpkg -l | grep ruby
将在该实例中工作。
无论是gem -v
或gem --version
将输出版本号。
了解更多信息:
$ gem -h
RubyGems is a sophisticated package manager for Ruby. This is a
basic help message containing pointers to more information.
Usage:
gem -h/--help
gem -v/--version
gem command [arguments...] [options...]
Examples:
gem install rake
gem list --local
gem build package.gemspec
gem help install
Further help:
gem help commands list all 'gem' commands
gem help examples show some examples of usage
gem help platforms show information about platforms
gem help <COMMAND> show help on COMMAND
(e.g. 'gem help install')
gem server present a web page at
http://localhost:8808/
with info about installed gems
Further information:
http://rubygems.rubyforge.org
我在另一个问题上看到您的gem应用程序已损坏。并且您已使用进行了更新gem update --system
。在这种情况下,您可以查看/usr/lib/ruby/gems/1.8/gems/rubygems-update-x.x.x
并获取最高值为xxx的目录
dpkg -l rubygems