Using Wildcard in 'ls' Command to Find Files Containing Uppercase Letters Only

(like FOO, T, ; unlike FOO.BAR, ETE (where that is written as E followed by a U0301 combining acute accent))With ksh or zsh -o kshglob -o nobareglobqual or bash -O extglob:With zsh -o extendedglob (which you'd rather use than kshglob):Or with GNU ls (assuming file names only contain valid characters):Or with find instead of ls (which here just outputs its arguments, I'd expect you'd want to use options like -l for it to be useful):(the -name '*' is to filter out the filenames that contain invalid characters, which the next ! -name would not be able to filter out (with some find implementations at least))(but still allow non-letters like in ABC.TXT), with ksh:With bash -O dotglob -O extglob or zsh -o kshglob -o dotglob -o nobareglobqual:Or zsh -o extendedglob:Or with GNU ls (assuming file names only contain valid characters):(the fact that the extra --ignore'.*:lower:*' is needed seems like a bug to me)With find:(with some find implementations, does not include filenames with invalid characters even if none of the valid characters are lower case ones).

(like Foo.

bar, .

t.

txt, unlike 123.

6, foo.

bar)With zsh -o dotglob or bash -O dotglob (the dotglob being to include files whose name starts with .):With find:(with some find implementations, does not include filenames with invalid characters even if some of the valid characters are uppercase ones) To allow combining characters, with zsh -o pcrematch, you could use a perl-like regular expression making use of Unicode character properties:

So I've been playing around with filesystem and wondered about listing the files in /etc that contains only upper-case letters in their names. I commanded

ls *[A-Z]*

But the console shows the files containing lower chars too.

I want to use only ls command. Is the console program locale dependent?

What is the underlying cause?

·OTHER ANSWER:

So I've been playing around with filesystem and wondered about listing the files in /etc that contains only upper-case letters in their names. I commanded

ls *[A-Z]*

But the console shows the files containing lower chars too.

I want to use only ls command. Is the console program locale dependent?

What is the underlying cause?