linux中这句curl是什么意思

Question

curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
1、这句中的参数 -sL是什么意思？

2、| sudo -E bash -又代表着什么？

Answer 1

-s表示不显示额外信息，只显示网页的源码。curl是个下载命令，你这个应该是下载服务器状态记录文件，然后显示(grep)空闲workers

Answer 2

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