命令行输入 /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install nc
这个error让人不踏实,实际上nc已经安装完了。。。
如果有问题,更新brew镜像源
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin git://mirrors.ustc.edu.cn/homebrew-core.git
echo 'export HOMEBREW_BOTTLE_DOMAIN=https://mirrors.ustc.edu.cn/homebrew-bottles' >> ~/.bash_profile
source ~/.bash_profile
brew update