earh

extract all root hosts

Take as input on stdin a list of urls and print on stdout all the unique root hosts.

Input

https://example.com/file?p=1&id=1
https://example.com/2?a="&page=!&url=1
https://www.example.com/file?redir_url=2
https://example.com/file?1=2?utm=cc
https://example.com/2?d=2?hl=1
https://www.example.com/file?hl=2
...

Usage

cat urls | earh

Output

example.com