Well I agree that glob was not the best example.  For sure there are things you have to learn about shell scripting as well.. one of them is if &quot;man for&quot; doesn&#x27;t work, try &quot;help for&quot; or &quot;man bash&quot;.  In fact there is no good reason for this and it should be improved.  (not to mention that you already had to know what *.in does, but you could argue that this is fundamental shell syntax: man bash &#x2F; pattern matching).