/media/sda-magnetic/david/Dokumente-15/fernuni-hagen/cs-i-ii/old-cs-2-03/bash-programming/lex-yacc-bash-etc/bash0012.sh

#!/bin/bash 

echo  $3$2$1

if [ "$1" = "0" ]
then
  var1="1"
  /bin/bash bash0012.sh $var1 $2 $3 $4
else
  var1="0"
  if [ "$2" = "0" ]
  then
    var2="1"
    /bin/bash bash0012.sh $var1 $var2 $3 $4
  else
    var2="0"
    if [ "$3" = "0" ]
    then
       var3="1"
       /bin/bash bash0012.sh $var1 $var2 $var3 $4
    else
      var3="0"
      if [ "$4" = "0" ]
      then
         var4="1"
      else
        var4="0"
        /bin/bash bash0012.sh $var1 $var2 $var4 $var4
      fi
    fi
  fi

fi