按以前学过的|管道符号，我以为wget下载并且执行是这样的。

wget http://www.xxx.com/hello.sh | sh

发现不行，后来我想起来每次安装oh-my-zsh的时候就是下载并且执行一条命令搞定。

via curl

curl https://raw.githubusercontent.com/creationix/nvm/v0.8.0/install.sh | sh

sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

 

via wget

wget https://raw.githubusercontent.com/creationix/nvm/v0.8.0/install.sh -O - | sh

sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"