05. gem使用手册

https://www.jianshu.com/p/ced2793bfde4?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation

gem list --help #查看帮助
gem list -b ^element #查找element开始的插件

haima@haima-PC:/media/haima/34E401CC64DD0E28/site/go/src/ruby/circles$ gem list -b ^element

*** LOCAL GEMS ***



*** REMOTE GEMS ***

element (0.0.1)
element_factory (0.1.4)
elemental (0.1.2)
elementaljs-rails (0.0.13)
elementary (0.0.0)
elementary-rpc (3.0.0.97)
elementic (1.1.1)
elementor (0.0.8)
elements (0.2.1)
elementy (0.1.2)
haima@haima-PC:/media/haima/34E401CC64DD0E28/site/go/src/ruby/circles$ gem list --help
Usage: gem list [REGEXP ...] [options]

  Options:
    -i, --[no-]installed             Check for installed gem