C/C++ cleanup script

#!/bin/bash

DIRS="."
SOURCE_FILES=`find -L $DIRS -iname "*\.[ch]pp" -or -iname "*\.[ch]" | grep -v "/\."`
HEADER_FILES=`find -L $DIRS -iname "*\.hpp" -or -iname "*\.h" | grep -v "/\."`


# astyle
if [ "$(astyle -V 2>&1)" != "Artistic Style Version 2.04" ]; then
  echo "Please update astyle to version 2.04:"
  echo
  echo 'mkdir -p $HOME/bin/ &&'
  echo 'cd /tmp &&'
  echo 'wget -c -T 20 -t 20 -O "astyle_2.04_linux.tar.gz" \'
  echo '"http://sourceforge.net/projects/astyle/files/astyle/astyle%202.04/astyle_2.04_linux.tar.gz/download" &&'
  echo 'tar xavf astyle_*_linux.tar.* &&'
  echo 'cd astyle/build/gcc/ &&'
  echo 'make -j5 &&'
  echo 'cp bin/astyle $HOME/bin/ &&'
  echo 'cd ../../.. &&'
  echo 'rm -rfv astyle &&'
  echo 'cd'
  echo
  exit 2
fi
astyle -s2 -A8 -C -S -N -L -w -y -p -d -U -c -E -j -H -k1 -Y $SOURCE_FILES


# Empty lines
echo At least one empty line at and of files
sed -n '1x;1!H;${x;s/$/\n/;p}' -i $SOURCE_FILES
echo At least three empty lines between functions
echo Only one empty line before \#include
echo No empty lines at beginning of blocks
echo No empty lines at end of blocks
echo No empty lines at beginning of files
echo One empty line at end of files
sed -n '1x;1!H;${x;s/\([^\n]\)\n\{2,3\}\([^\n]\)/\1\n\n\n\n\2/g;s/\n\n\n*#include/\n\n#include/g;s/{\(\n *\)*\n/{\n/g;s/\(\n *\)*\n\( *\)}/\n\2}/g;s/^\n*//;s/\n*$//;p}' -i $SOURCE_FILES
echo Only one empty line before \#ifndef in hpps
echo Only one empty line before \#endif in hpps
sed -n '1x;1!H;${x;s/\n\n\n*#ifndef/\n\n#ifndef/g;s/\n\n\n*#endif/\n\n#endif/g;p}' -i $HEADER_FILES


# remove spaces in empty lines
astyle -s2 -A8 -C -S -N -L -w -y -p -d -U -c -j -H -k1 -Y $SOURCE_FILES


# remove garbage
find -L -name "*~" -print -delete
find -L -name "*\.orig" -print -delete
find -L -name "#*#" -print -delete