diff --git a/main.go b/main.go
index e99dbb0..58ea2c5 100644
--- a/main.go
+++ b/main.go
@@ -162,6 +162,15 @@ func check(err error) {
 	}
 }
 
+func checkErr(err error, exit bool) {
+	if err != nil {
+		log.Println(err)
+		if exit {
+			os.Exit(1)
+		}
+	}
+}
+
 func GetAllFile(pathname string) error {
 	log.Println("begin for folder ", pathname)
 	rd, err := ioutil.ReadDir(pathname)