How to find and list tests that have a particular string of characters in their source or in their base filename

Hello,

I made a small mistake in my last email. I'm correcting this here and 
now.

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How to find and list test(s) that have(has) a particular string of 
characters (eg itchy) inside the contributors' folder? Do in a terminal

/contributors$ grep -l -r "itchy" *

or

/contributors$ grep --files-with-match --recursive "itchy" *

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How to find and list test(s) whose base filename have(has) a particular 
string of characters (eg scratchy) inside the contributors' folder? Do 
in a terminal

anywhere inside the base filename:
/contributors$ find -name "*scratchy*"

at the start of the base filename:
/contributors$ find -name "scratchy*"

at the end of the base filename:
/contributors$ find -name "*scratchy.html"

The search is by default recursive meaning that the search will be 
applied to folder, subfolders and descendant files.

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Gérard
-- 
Web authors' contributions to CSS 2.1 test suite
http://www.gtalbot.org/BrowserBugsSection/css21testsuite/web-authors-contributions-css21-testsuite.html
CSS 2.1 Test suite RC6, March 23rd 2011
http://test.csswg.org/suites/css2.1/20110323/html4/toc.html