Re: Cygwin: problem with renaming and case

[Linus Torvalds <torvalds@linux-foundation.org>]

On Sat, 22 Mar 2008, Nagy Bal?zs wrote:
> 
> qmail-1.03 is one of the rare species which has two files which differ only in
> their case, namely INSTALL and install.  The first one contains the
> documentation, the latter one is compiled from source.  Apart from that I
> don't know any other affected projects.

The kernel has lots of them. Well, not "lots" (considering that it has 
23000+ filenames), but something like 20+ names that exists in two forms 
with just different case.

Do

	git ls-files | tr '[A-Z]' '[a-z]' | sort | uniq -d

and you'll get

	include/linux/netfilter_ipv4/ipt_connmark.h
	include/linux/netfilter_ipv4/ipt_dscp.h
	include/linux/netfilter_ipv4/ipt_ecn.h
	include/linux/netfilter_ipv4/ipt_mark.h
	include/linux/netfilter_ipv4/ipt_tcpmss.h
	include/linux/netfilter_ipv4/ipt_tos.h
	include/linux/netfilter_ipv4/ipt_ttl.h
	include/linux/netfilter_ipv6/ip6t_hl.h
	include/linux/netfilter_ipv6/ip6t_mark.h
	include/linux/netfilter/xt_connmark.h
	include/linux/netfilter/xt_dscp.h
	include/linux/netfilter/xt_mark.h
	include/linux/netfilter/xt_rateest.h
	include/linux/netfilter/xt_tcpmss.h
	net/ipv4/netfilter/ipt_ecn.c
	net/ipv4/netfilter/ipt_ttl.c
	net/ipv6/netfilter/ip6t_hl.c
	net/netfilter/xt_connmark.c
	net/netfilter/xt_dscp.c
	net/netfilter/xt_mark.c
	net/netfilter/xt_rateest.c
	net/netfilter/xt_tcpmss.c

where you basically have the netfilter people using lower-case version for 
netfilter matching rules and the uppercase vesion for rewriting rules. Or 
something.

Admittedly the netfilter people _are_ strange, and we need to make sure 
that they take all their medication regularly or they do stupid things, 
but it does happen. The kernel people obviously expect people to use sane 
filesystems for kernel development..

			Linus