在 OSX 中卸载所有已安装的 gem? [英] Uninstall all installed gems, in OSX?

问题描述

在某些情况下，我想恢复并卸载所有以前的 gem 安装.

There are instances where I would like to revert and uninstall all previous gem installations.

例如，我需要帮助一位朋友迁移他们的 Rails 开发机器以使用 RVM.由于他们之前一直在使用系统范围的 gem，他在处理多个项目时遇到了很多麻烦.基本上，他是 RVM 皈依者的典型代表.

For instance, I needed to assist a friend migrate their rails development machine to use RVM. As they had been previously using the system-wide gem, he was experiencing many headaches when working with multiple projects. Essentially, he was the poster-child for an RVM convert.

我怎样才能优雅地卸载他的 OSX 系统上的所有 gem?

How can I elegantly uninstall all of the gems on his OSX system?

推荐答案

Rubygems >= 2.1.0

gem uninstall -aIx

a 删除所有版本
I 忽略依赖项
x 包括可执行文件

a removes all versions
I ignores dependencies
x includes executables

Rubgems <2.1.0

for i in `gem list --no-versions`; do gem uninstall -aIx $i; done

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