{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm-z-2.hatenadiary.org%2Fentry%2F20130905%2F1378367697\" title=\"gem (Rubygems) \u306e\u30b3\u30de\u30f3\u30c9\u307e\u3068\u3081 - \u3067\u3093\u306e\u3046\u306b\u3063\u3057\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"m__z","version":"1.0","width":"100%","height":"190","blog_url":"https://m-z-2.hatenadiary.org/","title":"gem (Rubygems) \u306e\u30b3\u30de\u30f3\u30c9\u307e\u3068\u3081","provider_name":"Hatena Blog","description":"# gem install \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb # gem search -r \u30d0\u30fc\u30b8\u30e7\u30f3\u691c\u7d22 # gem update \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8 # gem list \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u30ea\u30b9\u30c8\u306e\u8868\u793a # gem cleanup \u6d88\u53bb\uff08\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6b8b\u308b\uff09 # gem uninstall \u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3061\u306a\u307f\u306brails4\u3092\u30a2\u30f3\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3051\u3069\u306a\u305c\u304brails -v\u30674\u304c\u8fd4\u3063\u3066\u304f\u308b\u3093\u3067\u3059\u3051\u3069\u3063\u3066\u6642\u306b\u306f rails\u30b3\u30de\u30f3\u30c9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u623b\u3059\u305f\u3081\u306bgem uninstall railties\u3092\u8a66\u3057\u3066\u307f\u308b\u3068\u3088\u3044\u3067\u3059 rails\u30b3\u30de\u30f3\u30c9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u623b\u3057\u305f\u3044 http://qiita.com/fukajun/item\u2026","type":"rich","blog_title":"\u3067\u3093\u306e\u3046\u306b\u3063\u3057","provider_url":"https://hatena.blog","image_url":null,"categories":["gem"],"published":"2013-09-05 16:54:57","url":"https://m-z-2.hatenadiary.org/entry/20130905/1378367697","author_url":"https://blog.hatena.ne.jp/m__z/"}