diff --git a/internal/controller/meta.go b/internal/controller/meta.go
index a19e6f6..45468ae 100644
--- a/internal/controller/meta.go
+++ b/internal/controller/meta.go
@@ -136,13 +136,19 @@ func (m *meta) Start(ctx context.Context) {
 	// 清理一天前的文件
 	go func() {
 		ticker := time.NewTicker(5 * time.Minute)
+		duration := time.Duration(opt.Cfg.CleanInterval) * time.Hour
 
 		for {
 			select {
 			case <-ctx.Done():
 				return
 			case now := <-ticker.C:
+				//log.Debug("meta.Clean: 开始清理过期文件 = %v", duration)
 				_ = filepath.Walk(opt.Cfg.DataPath, func(path string, info os.FileInfo, err error) error {
+					if info == nil {
+						return nil
+					}
+
 					if info.IsDir() {
 						return nil
 					}
@@ -168,12 +174,16 @@ func (m *meta) Start(ctx context.Context) {
 
 					code := strings.TrimPrefix(name, ".meta.")
 
-					if now.Sub(time.UnixMilli(mi.CreatedAt)) > 24*time.Hour {
+					if now.Sub(time.UnixMilli(mi.CreatedAt)) > duration {
 
 						log.Debug("controller.meta: file out of date, code = %s, user_key = %s", code, mi.Uploader)
 
-						os.RemoveAll(opt.FilePath(code))
-						os.RemoveAll(path)
+						if err = os.RemoveAll(opt.FilePath(code)); err != nil {
+							log.Warn("meta.Clean: remove file failed, file = %s, err = %s", opt.FilePath(code), err.Error())
+						}
+						if err = os.RemoveAll(path); err != nil {
+							log.Warn("meta.Clean: remove file failed, file = %s, err = %s", path, err.Error())
+						}
 
 						m.Lock()
 						delete(m.m, code)
diff --git a/internal/opt/opt.go b/internal/opt/opt.go
index 35049f4..5da258d 100644
--- a/internal/opt/opt.go
+++ b/internal/opt/opt.go
@@ -7,10 +7,11 @@ import (
 )
 
 type config struct {
-	Debug    bool
-	Address  string
-	DataPath string
-	Auth     string
+	Debug         bool
+	Address       string
+	DataPath      string
+	Auth          string
+	CleanInterval int
 }
 
 var (
diff --git a/main.go b/main.go
index 47c8044..d8c5179 100644
--- a/main.go
+++ b/main.go
@@ -7,6 +7,7 @@ import (
 	"github.com/loveuer/ushare/internal/api"
 	"github.com/loveuer/ushare/internal/controller"
 	"github.com/loveuer/ushare/internal/opt"
+	"github.com/loveuer/ushare/internal/pkg/tool"
 	"os/signal"
 	"syscall"
 )
@@ -16,11 +17,12 @@ func init() {
 	flag.StringVar(&opt.Cfg.Address, "address", "0.0.0.0:9119", "")
 	flag.StringVar(&opt.Cfg.DataPath, "data", "/data", "")
 	flag.StringVar(&opt.Cfg.Auth, "auth", "", "auth required(admin, password)")
+	flag.IntVar(&opt.Cfg.CleanInterval, "clean", 24, "清理文件的周期, 单位: 小时, 0 则表示不自动清理")
 	flag.Parse()
 
 	if opt.Cfg.Debug {
 		log.SetLogLevel(log.LogLevelDebug)
-		log.Debug("start server with debug mode")
+		tool.TablePrinter(opt.Cfg)
 	}
 }