converts special htmlcharacters into htmlentities

htmlentities

# converts special htmlcharacters into htmlentities
# usage: cat file.txt | htmlentities

htmlentities(){
  cat - | sed -e 's/&/\&/g'	\
      -e 's/</\&lt;/g'	\
      -e 's/>/\&gt;/g'	\
      -e 's/ä/\&auml;/g'	\
      -e 's/ö/\&ouml;/g'	\
      -e 's/ü/\&uuml;/g'	\
      -e 's/ß/\&szlig;/g'	\
      -e 's/Ä/\&Auml;/g'	\
      -e 's/Ö/\&Ouml;/g'	\
      -e 's/Ü/\&Uuml;/g'	
}