preinst is in notify-osd 0.9.35+16.04.20160415-0ubuntu2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #!/bin/sh
set -e
case "$1" in
install|upgrade)
# avoid file conflict with notification-daemon
dpkg-divert --add --rename --package notify-osd --divert /usr/share/dbus-1/services/org.freedesktop.Notifications.service.notify-osd /usr/share/dbus-1/services/org.freedesktop.Notifications.service > /dev/null
;;
abort-upgrade)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 0
;;
esac
exit 0
|