Re: Case modification fails for Unicode characters

[DJ Mills]

On Thu, Jul 12, 2012 at 2:19 PM, Dennis Williamson
<dennistwilliamson@gmail.com> wrote:
> s=łódź; echo "${s^^} ${s~~}"'
> łóDź ŁÓDŹ
>
> The to-upper and the undocumented toggle operators should produce
> identical output in this situation, but only the toggle works
> correctly.
>
> This is in en_US.UTF-8, but also reported in pl_PL.utf-8. In Bash
> 4.2.24 and Bash 4.0.33.
>
> --
> Visit serverfault.com to get your system administration questions answered.
>

I get the same result with:
» echo "$s" | tr '[:lower:]' '[:upper:]'
łóDź

» locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=


This is a locale issue, and has nothing to do with bash itself...