Fix clean.sh

registry/scripts/clean.sh

@@ -18,10 +18,11 @@
 
 conf_dir="/etc/registry"
 conf_file="$conf_dir/hosts"
+cp $conf_file $conf_file.old
 while read line
 do
     if [ ! -z "$line" ] && \
-        [ "$(echo $line | cut -d ' ' -f 1)" -lt "$(date -d '-6 month' +%Y%m%d)" ]
+        [ "$(echo $line | cut -d ' ' -f 1)" -gt "$(date -d '-6 month' +%Y%m%d)" ]
         then
             LINES="$LINES\n$line"
         fi