Package: dash
Version: 0.5.11+git20210903+057cd650a4ed-8
/usr/share/doc/dash/ says
dash (0.5.5.1-2.1) unstable; urgency=low
* The default system shell (/bin/sh) has been changed to dash for
new installations. When upgrading existing installations, the
system shell will not be changed automatically.
* One can see what the current default system shell on this machine
is by running 'readlink /bin/sh'.
* Change it by running 'dpkg-reconfigure dash'.
-- Luk Claes <l...@debian.org> Wed, 22 Jul 2009 17:23:20 +0200
However, my /bin/sh -> bash got changed anyway, so the above is wrong.
# ls -l /bin/sh --full-time
lrwxrwxrwx 1 root root 4 2022-03-15 07:31:29.311937593 +0800 /bin/sh -> dash
# grep dash /var/log/dpkg.log
2022-03-15 07:31:29 upgrade dash:amd64 0.5.11+git20210903+057cd650a4ed-3
0.5.11+git20210903+057cd650a4ed-8
2022-03-15 07:31:29 status half-configured dash:amd64
0.5.11+git20210903+057cd650a4ed-3
2022-03-15 07:31:29 status unpacked dash:amd64 0.5.11+git20210903+057cd650a4ed-3
2022-03-15 07:31:29 status half-installed dash:amd64
0.5.11+git20210903+057cd650a4ed-3
2022-03-15 07:31:29 status unpacked dash:amd64 0.5.11+git20210903+057cd650a4ed-8
2022-03-15 07:31:29 configure dash:amd64 0.5.11+git20210903+057cd650a4ed-8
<none>
2022-03-15 07:31:29 status unpacked dash:amd64 0.5.11+git20210903+057cd650a4ed-8
2022-03-15 07:31:29 status half-configured dash:amd64
0.5.11+git20210903+057cd650a4ed-8
2022-03-15 07:31:29 status triggers-awaited dash:amd64
0.5.11+git20210903+057cd650a4ed-8
2022-03-15 07:33:03 status installed dash:amd64
0.5.11+git20210903+057cd650a4ed-8
# grep dash /var/log/apt/term.log
Preparing to unpack .../dash_0.5.11+git20210903+057cd650a4ed-8_amd64.deb ...
Unpacking dash (0.5.11+git20210903+057cd650a4ed-8) over
(0.5.11+git20210903+057cd650a4ed-3) ...
Setting up dash (0.5.11+git20210903+057cd650a4ed-8) ...
Adding 'diversion of /bin/sh to /bin/sh.distrib by dash'
Adding 'diversion of /usr/share/man/man1/sh.1.gz to
/usr/share/man/man1/sh.distrib.1.gz by dash'
