diff --git a/conf/redis-shake.conf b/conf/redis-shake.conf
index e950d3d..8a7f5ab 100644
--- a/conf/redis-shake.conf
+++ b/conf/redis-shake.conf
@@ -112,7 +112,7 @@ filter.db =
 # e.g., a;b;c
 # default is all.
 # used in `restore`, `sync` and `rump`.
-# 支持按前缀过滤key，只让指定前缀的key通过，分号分隔
+# 支持按前缀过滤key，只让指定前缀的key通过，分号分隔。比如指定abc，将会过滤abc, abc1, abcxxx
 filter.key =
 # filter given slot, multiple slots are separated by ';'.
 # e.g., 1;2;3
diff --git a/src/redis-shake/main/main.go b/src/redis-shake/main/main.go
index dcfb0fb..303f140 100644
--- a/src/redis-shake/main/main.go
+++ b/src/redis-shake/main/main.go
@@ -51,7 +51,12 @@ func main() {
 	version := flag.Bool("version", false, "show version")
 	flag.Parse()
 
-	if *configuration == "" || *tp == "" || *version {
+	if *version {
+		fmt.Println(utils.Version)
+		return
+	}
+	
+	if *configuration == "" || *tp == "" {
 		if !*version {
 			fmt.Println("Please show me the '-conf' and '-type'")
 		}
diff --git a/src/redis-shake/sync.go b/src/redis-shake/sync.go
index 1da67a1..894c517 100644
--- a/src/redis-shake/sync.go
+++ b/src/redis-shake/sync.go
@@ -629,7 +629,7 @@ func (ds *dbSyncer) syncCommand(reader *bufio.Reader, target []string, auth_type
 				if len(conf.Options.FilterKey) != 0 {
 					cmdNode, ok := command.RedisCommands[scmd]
 					if ok && len(argv) > 0 {
-						log.Debugf("dbSyncer[%v] filter command[%v]", ds.id, scmd)
+						// log.Debugf("dbSyncer[%v] filter command[%v]", ds.id, scmd)
 						new_argv, pass = command.GetMatchKeys(cmdNode, argv, conf.Options.FilterKey)
 					} else {
 						pass = true