POSTIN

/bin/sh

update-desktop-database /usr/share/applications
# update icon themes
touch /usr/share/icons/hicolor
if [ -x /usr/bin/gtk-update-icon-cache ]; then
  /usr/bin/gtk-update-icon-cache --quiet /usr/share/icons/hicolor
fi

POSTUN

/bin/sh

update-desktop-database /usr/share/applications
# update icon themes
touch /usr/share/icons/hicolor
if [ -x /usr/bin/gtk-update-icon-cache ]; then
  /usr/bin/gtk-update-icon-cache --quiet /usr/share/icons/hicolor
fi