Mac更新Ruby报错
sudo gem update --system
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/update_rubygems
解决方法：
sudo gem update -n /usr/local/bin --system
Mac更新Ruby报错
sudo gem update --system
ERROR: While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/update_rubygems
解决方法：
sudo gem update -n /usr/local/bin --system