--- a/mkready	Thu Jul 15 15:02:30 2010 +0200
+++ b/mkready	Thu Jul 15 15:26:38 2010 +0200
@@ -8,6 +8,9 @@
 conf_dir="$ZONE_CONF_DIR"
 bind_dir="$BIND_DIR"
 
+tmpfile=`mktemp`
+trap "rm -f $tmpfile" EXIT QUIT INI
+
 for zone_domain in $master_dir/*
 do
         domain=${zone_domain##/*/}
@@ -21,7 +24,7 @@
 	# nicht signiert wird die standard-zonedatei eingetragen.
         if [ -f $master_dir/$domain/$domain.signed ]
         then
-                if ( ! grep "file" $conf_file | grep "signed" ) > /dev/null
+                if ! grep -q "file" $conf_file | grep "signed"
                 then
                         cp $conf_file .tmp
  			sed -e "s\\$zone\\$zone_signed\\g" < .tmp > $conf_file