$ npm install --global brkn-cli

$ brkn <url|file...> [--attr [html attribute...]] [--base <hostname (w/ protocol)>] [--verbose]

--attr, -a     The attributes to search for (space separated if more than one) (default: href src)
--base, -b     The base URL (needed to resolve relative URLs; files only)
--verbose, -v  Run in verbose mode
--help         Show the help screen
--version      Show version number

$ brkn https://httpbin.org
$ brkn https://mywebsite.com https://otherwebsite.org --verbose
$ brkn ./fixtures/*.html --base "https://mywebsite.com" --verbose