Thanks for the explanation... I've searched in vain for the node where I originally found this trick. Here is the code i squirrled away from it though: 
#!/usr/bin/perl
print map "$_\n", glob("{A,B,C}{a,b,c}");

[download]
I guess the part that puzzled me is that glob *usually* interacts with the filesystem. glob("*.pl") will return list of perl scripts in your cwd.... why aren't the values above checked against the filesystem for actual files?

Update: The code above came from Re (tilly) 2: Sort of like a file handle, but not.

-Blake

In reply to Re: Re: Re: Web-Safe Color Chart by blakem
in thread Web-Safe Color Chart by Zecho

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