update log clean

pkg/app/process.go

@@ -478,16 +478,29 @@ func AutoLogsClean() error {
 		return err
 	}
 	list := strings.Split(buf.String(),"\t")
-	tlog.Info("chain33.out","size",buf.String())
 	if len(list) >=2 {
-		if size,err := strconv.Atoi(list[0]);err != nil {
+		size,err := strconv.Atoi(list[0])
+		if err != nil {
 			tlog.Error("AutoLogsClean split","err",err)
-		} else {
-			if size >= 200 {
-				c := exec.Command("echo","1","=>","chain33.out")
-				c.Run()
+			return err
+		}
+		tlog.Info("AutoLogsClean","size",size)
+		if size >= 200 {
+			var b bytes.Buffer
+			c := exec.Command("bash","-c","echo 1 => chain33.out")
+			c.Stderr = &b
+			err = c.Start()
+			if err != nil {
+				tlog.Error("AutoLogsClean clean","err",err)
+				return err
+			}
+			err = c.Wait()
+			if err != nil {
+				tlog.Error("AutoLogsClean clean","err",err)
+				return err
 			}
 		}
+
 	}
 
 	return nil