title: How to implement all files which have no extension with asterisk?
body: <p>Is there some way to implement all files with no extension using asterisk? I want to use it in <em>Makefile</em> or <em>.gitignore</em> implementation to remove or ignore all non-extension files such as <em>README</em>, <em>Makefile</em> and complied <em>C</em> file. When I use just <code>rm *</code> format, it delete ALL files regardless of extension, while I want to control ONLY non-extension files.</p>