From owner-freebsd-stable@freebsd.org  Wed Jul 27 08:20:14 2016
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From: =?UTF-8?B?Sm9zw6kgR2FyY8OtYSBKdWFuaW5v?= <jjuanino@gmail.com>
Date: Wed, 27 Jul 2016 10:20:12 +0200
Message-ID: <CAAVO5+LjAsN+j+9sa+6pGVjDBqqe=MR9spKrsEuHWApfm5kRNA@mail.gmail.com>
Subject: sed command does not behave equal from 10.3 to 11.0
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Hi FreeBSD stable,

After upgrade to 11.0-BETA2, a lot of sed scripts are no longer valid:

FreeBSD 10.3
---------------------
$ echo "abc_ABC.def" | sed -e 's/[^A-Z0-9]//g'
ABC


FreeBSD 11.0
--------------------
$ echo "abc_ABC.def" | sed -e 's/[^A-Z0-9]//g'
bcABCdef


Indeed, in 11.0 you need to re rewrite the sentence as follows:

$ echo "abc_ABC.def" | sed -e 's/[^[:upper:][:digit:]]//g'
ABC

In linux, sed behaves exactly as 10.3.

Is this behaviour expected or is a bug?

Best regards