PREUN

/bin/sh

if [ "$1" = 0 ]; then
  # Remove update-alternatives entry
  /usr/sbin/update-alternatives --remove lpr /usr/bin/lpr-pdq
  # Remove panic-buttons
  /usr/sbin/pdqpanicbutton --remove
fi

POSTIN

/bin/sh

# Set up update-alternatives entry
/usr/sbin/update-alternatives --install /usr/bin/lpr lpr /usr/bin/lpr-pdq 6 --slave /usr/share/man/man1/lpr.1.bz2 lpr.1.bz2 /usr/share/man/man1/lpr-pdq.1.bz2