Em 2017-04-07 02:29, Garrett Wollman escreveu:
In article <3a8b8ade882d1486aa41b448a9c83...@i805.com.br> you write:
It's a terrible!!!! Is it a locale bug? Look!
% locale
LANG=pt_BR.UTF-8
% touch E
% ls -l [a-z]*
-rw-r--r-- 1 rizzo wheel 0 7 abr 02:06 E
No, it's the specification of how character ranges in glob(3) and
fnmatch(3) work. In effect, character ranges like [a-z] must be
treated as ranges of *collating elements*, not byte ranges, and in
your locale, <a> and <A> are considered to be the same collating
element, so [a-z] matches both upper- and lower-case Latin letters.
This is documented, very obliquely, in sh(1), which also tells you the
workaround:
a character class. A character class matches any of the
characters
between the square brackets. A locale-dependent range of
characters may
be specified using a minus sign. A named class of characters (see
wctype(3)) may be specified by surrounding the name with `[:' and
`:]'.
For example, `[[:alpha:]]' is a shell pattern that matches a
single let-
ter.
So, to match only lower-case letters regardless of your current locale
setting, you must use the correct character class:
$ locale
LANG=pt_BR.UTF-8
LC_CTYPE="pt_BR.UTF-8"
LC_COLLATE="pt_BR.UTF-8"
LC_TIME="pt_BR.UTF-8"
LC_NUMERIC="pt_BR.UTF-8"
LC_MONETARY="pt_BR.UTF-8"
LC_MESSAGES="pt_BR.UTF-8"
LC_ALL=
$ ls
D E F a b c
$ ls [[:lower:]]*
a b c
The same applies to character class ranges in regular expressions, not
just glob(3) patterns.
-GAWollman
It's only work in SH, in C shell (or tcsh) not work
and it's not work if I need to do this:
I think this not correct.
% setenv LANG C
% echo "Using C " && ls && echo "---" && ls [a-c,k-m]*
Using C
A a d g j m p s v
y
D b e h k n q t w
z
E c f i l o r u x
---
a b c k l m
% setenv LANG pt_BR.UTF-8
% echo "Using pt_BR.UTF-8" && ls && echo "---" && ls [a-c,k-m]*
Using pt_BR.UTF-8
a c e g j m p s v
y
A d E h k n q t w
z
b D f i l o r u x
---
a A b c k l m
% sh
$ ls [a-c,k-l]*
a A b c k l
$ ls [[:lower:]a-c,k-l]*
a c f i l o r u x
A d g j m p s v y
b e h k n q t w z
If I'll use the rm command I'll erase file that not match with my
selection.
Imagine if I has a script to work in batch mode and it's occur, can be a
too
dangerous.
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