Mac ~ % sudo rm -rf /usr/local/bin/pod
Password:
Mac ~ % sudo gem uninstall cocoapods
Remove executables:
pod, sandbox-pod
in addition to the gem? [Yn] Y
Removing pod
Removing sandbox-pod
Successfully uninstalled cocoapods-1.9.3
Mac ~ % gem list
cocoapods (1.9.3)
cocoapods-core (1.9.3)
cocoapods-deintegrate (1.0.4)
cocoapods-downloader (1.4.0)
cocoapods-plugins (1.0.0)
cocoapods-search (1.0.0)
cocoapods-stats (1.1.0)
cocoapods-trunk (1.5.0)
cocoapods-try (1.2.0)
逐个移除 cocoapods 相关文件：
Mac ~ % sudo gem uninstall cocoapods -v 1.4.0
in addition to the gem? [Yn] y
根据提示输入y，允许卸载：
Removing pod
Removing sandbox-pod
Successfully uninstalled cocoapods-1.4.0
完成后，继续卸载剩下的 cocoapods 文件, XXX 为文件名 (不需要后面的版本号)，
需要你自己修改相应的文件名：
Mac ~ % sudo gem uninstall cocoapods-XXX
sudo gem uninstall cocoapods-core (1.9.3)
sudo gem uninstall cocoapods-deintegrate (1.0.4)
sudo gem uninstall cocoapods-downloader (1.4.0)
sudo gem uninstall cocoapods-plugins (1.0.0)
sudo gem uninstall cocoapods-search (1.0.0)
sudo gem uninstall cocoapods-stats (1.1.0)
sudo gem uninstall cocoapods-trunk (1.5.0)
sudo gem uninstall cocoapods-try (1.2.0)
查看是否卸载干净
Mac ~ % gem list
