% bash
hosiet@hosiet-mi:~$ export LANG=C
hosiet@hosiet-mi:~$ cat test.html
<!DOCTYPE html>
<html><head><title>hello</title><body></body></html>
hosiet@hosiet-mi:~$ ls -la ./test.html
-r--r--r-- 1 hosiet hosiet 69 Dec 26 12:50 ./test.html
hosiet@hosiet-mi:~$ tidy -ascii -i a.html
Document: "a.html" is not a file!
About HTML Tidy: https://github.com/htacg/tidy-html5
Bug reports and comments: https://github.com/htacg/tidy-html5/issues
Official mailing list: https://lists.w3.org/Archives/Public/public-htacg/
Latest HTML specification: http://dev.w3.org/html5/spec-author-view/
Validate your HTML documents: http://validator.w3.org/nu/
Lobby your company to join the W3C: http://www.w3.org/Consortium
Do you speak a language other than English, or a different variant of
English? Consider helping us to localize HTML Tidy. For details please see
https://github.com/htacg/tidy-html5/blob/master/README/LOCALIZE.md
