preinst is in chrome-gnome-shell 10-1.
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 22 23 24 | #!/bin/sh
set -e
case "$1" in
remove|purge)
;;
install|upgrade|failed-upgrade)
if dpkg --compare-versions "$2" le "7.2-2"; then
[ -e /var/lib/dpkg/info/chrome-gnome-shell.postrm ] && rm /var/lib/dpkg/info/chrome-gnome-shell.postrm
fi
;;
*)
echo "Called with unknown argument \`$1'" >&2
exit 1
;;
esac
exit 0
|