Regular Expression Case Sensitivity

[Michael Wittman]

On Tue, Dec 04, 2001 at 11:54:44AM -0800, Simper, Brian D wrote:
> Try this in an empty directory and let me know if this is a bug or a feature
> or an error on my part.
> 
> Create several files of upper and lower case names:
> 
> 	touch aaaa
> 	touch AAAA
> 	touch bbbb
> 	touch BBBB
> 	touch 1234
> 	touch .abcd
> 
> Now use a regular expression to delete all files starting with a lower case
> letter:
> 
> 	rm [a-z]*
> 
> When I was experimenting with this all of the files starting with *any*
> alphabetic character were deleted.  This was unexpected and I'm not sure if
> I am misinterpreting the regular expression or if I am delusional.  Let me
> know what you get.  FYI, I am using Red Hat Linux 7.2 so I would be
> interested if it's just me.
> 
> Brian

You don't have the nocaseglob bash shell option set do you?  What does
"shopt | grep nocaseglob" say?

-Mike