Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

/var/lib/dpkg/info/mutter.postinst

 #!/bin/sh

set -e

action="$1"

if [ "$action" = configure ]; then
    # register the alternatives of x-window-manager manually
    # because dh_installwm doesn't register manpage as slave yet.
    update-alternatives --install /usr/bin/x-window-manager \
        x-window-manager /usr/bin/mutter 60 \
        --slave /usr/share/man/man1/x-window-manager.1.gz \
        x-window-manager.1.gz /usr/share/man/man1/mutter.1.gz
fi