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Date: Thu, 29 Oct 2015 13:00:39 +0000
From: RW <rwmaillists@googlemail.com>
To: freebsd-questions@freebsd.org
Subject: Re: tr(1) and LANG=de_DE.UTF-8
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On Thu, 29 Oct 2015 11:31:33 +0100
Matthias Apitz wrote:

> Hello,
> 
> I was wondering why I could not patch a byte \357 in a file with
> tr(1):
> 
...
> [guru@kant-r269739 ~]$ LANG=de_DE.UTF-8
> tr '\357' '\000' < /tmp/x  | od -c
...
> until I changed the LANG to C:

In UTF-8 a byte containing \357 can only exist as part of a multibyte
character. Presumably tr interprets \357 as a character rather than a
byte.