解决ruby command not found 发表于 2017-01-13 更新于 2026-03-03 分类于 技术分享 错误: 1sudo: ruby: command not found 所以还要建立以下软链接: 12sudo ln -s /usr/local/ruby/bin/ruby /usr/bin/rubysudo ln -s /usr/local/ruby/bin/gem /usr/bin/gem 然后执行: 1sudo gem -v 输出 1.3.7.