--- a/mkready	Thu Jul 15 15:26:38 2010 +0200
+++ b/mkready	Thu Jul 15 15:33:01 2010 +0200
@@ -24,20 +24,18 @@
 	# nicht signiert wird die standard-zonedatei eingetragen.
         if [ -f $master_dir/$domain/$domain.signed ]
         then
-                if ! grep -q "file" $conf_file | grep "signed"
+                if ! grep -q "file.*signed\"" $conf_file 
                 then
-                        cp $conf_file .tmp
- 			sed -e "s\\$zone\\$zone_signed\\g" < .tmp > $conf_file
+                        sed -e "s\\$zone\\$zone_signed\\g" <$conf_file >$tmpfile
+			mv $tmpfile $conf_file
                         echo $zone '-->' $zone_signed
-			rm .tmp
                 fi
         else
-                if ( grep "file" $conf_file | grep "signed" ) > /dev/null
+                if grep -q "file.*signed\"" $conf_file
                 then
-                        cp $conf_file .tmp
-			sed -e "s\\$zone_signed\\$zone\\g" < .tmp > $conf_file
+                        sed -e "s\\$zone_signed\\$zone\\g" <$conf_file >$tmpfile
+			mv $tmpfile $conf_file
                         echo $zone_signed '-->' $zone
-			rm .tmp
                 fi
         fi
 done