Install Brother printer drivers

#!/bin/bash
# Install brother printer drivers on Ubuntu

[ "`whoami`" != "root" ] && {
  echo "This script must be run as root."
  exit
}

#====[ PREREQUISITES ]===
# These are requirements for all but the scanner (i.e. for printer & fax).
# make sure ia32-libs are installed
echo "* Catering pre-requisites..."
[ "`uname -p`" == "x86_64" ] && {
  echo " - checking extra requirements for 64-bit systems..."
  [ "`dpkg --get-selections ia32-libs |awk '{print $1}'`" != "ia32-libs" ] && apt-get install ia32-libs
#
# Some additional requirements according to http://wiki.ubuntuusers.de/Brother/Drucker (also required by FaxDriver)
  [ "`dpkg --get-selections lib32stdc++6 |awk '{print $1}'`" != "lib32stdc++6" ] && apt-get install lib32stdc++6
}
echo " - making sure csh and cups are installed..."
[ -z `which csh` ] && apt-get install csh
[ -z `which cupsd` ] && apt-get install cups
#
# Create dirs for cups & lpd if not exists
echo " - creating required directories..."
[ ! -d /usr/lib/cups/filter ] && mkdir -p /usr/lib/cups/filter
[ ! -d /usr/share/cups/model ] && mkdir /usr/share/cups/model
[ ! -d /var/spool/lpd ] && mkdir /var/spool/lpd

#===[ Printer ]===
echo "* Installing printer drivers..."
[ ! -f *lpr*.deb -o ! -f *cupswrapper*.deb ] && {
  cat<<ENDTEXT
Could not find the printer driver packages.
Make sure you downloaded them from the Brother site, and placed them in the
same directory as this script. At least one of the following files is missing:
- *lpr*.deb (e.g. mfc9120cnlpr-1.1.2-1.i386.deb)
- *cupswrapper*.deb (e.g. mfc9120cncupswrapper-1.1.2-1.i386.deb)
ENDTEXT
  exit
}
dpkg -i --force-architecture *lpr*.deb
dpkg -i --force-architecture *cupswrapper*.deb
[ "`uname -p`" == "x86_64" ] && {
  [ ! -d /usr/lib64/cups/filter ] && mkdir -p /usr/lib64/cups/filter
  ln -s /usr/lib/cups/filter/brlpdwrapper* /usr/lib64/cups/filter/  # nur x64
}
cat<<ENDTEXT
-------------------------------------------------------------------------------
If you do not see any error messages above, you should now be able to setup
your printer by pointing your webbrowser to http://localhost:631/
Furthermore, there may be some adjustments needed to the rc file
(either /usr/local/Brother/inf/br(model name)rc - if this exists,
otherwise /usr/Brother/Printer/modelname/inf/modelnamerc). If it says there
PaperType=Letter
you may want to change this to
PaperType=A4
For more possibly needed adjustments, please check the Brother FAQ at
http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/faq_prn.html#f00108
ENDTEXT