Someone

#!/bin/sh

if [ "x$1" = "x" ] ; then
 echo "usage: $0 <dir>"
 exit;
fi

find $1 > .wtf

cat .wtf | while read f
do
   x=$(grep 'printf([^"]*)' $f)
   if [ "a$x" != "a" ] ; then
     echo "FILE: $f"
     echo "CODE:"
     echo $x
     echo "";
     echo "--------------"
     echo ""
   fi
done