My guess is that 'csf' is readable but not searchable. That would explain your symptoms:
$ ls -ld csf dr--------. 2 eggert eggert 4096 Feb 6 15:31 csf $ ls -ld csf/. ls: cannot access csf/.: Permission denied $ ls --color=always -a csf ls: cannot access csf/.: Permission denied ls: cannot access csf/..: Permission denied . .. In the last example, 'ls' needs to stat csf/. and csf/.. to see whether their permissions are weird (since directories with weird permissions are given different colors), but it cannot do so since csf lacks search permission. One possible fix would be to alter 'ls' so that, if 'ls' cannot find out about a file, it gives the file an even weirder color. That might be more useful than the current behavior. Is this something you could write?
