missing man page

No man page found for find%20path%2Fto%2Fwikipages%2F%20-type%20f%20-name%20%22*.md%22%20-print0%20%7C%20shuf%20--zero-terminated%20%7C%20head%20-n500%20--zero-terminated%20%7C%20xargs%20-0%20-n1%20-I%7B%7D%20cp%20%22%7B%7D%22%20.