diff --git a/backUpIncremental.sh b/backUpIncremental.sh
index 0a083bb..0edc704 100755
--- a/backUpIncremental.sh
+++ b/backUpIncremental.sh
@@ -15,17 +15,18 @@ LAST_BINLOG=$(echo "$LAST_BACKUP" | awk '{print $1}')
 LAST_POSITION=$(echo "$LAST_BACKUP" | awk '{print $2}')
 
 # 如果是第一次运行，设置初始值
+
+
+# 获取当前binlog文件名和位置
+CURRENT_BINLOG=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS"   | awk '{print $1}')
+CURRENT_POSITION=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS" | awk '{print $2}')
+
 if [[ -z "$LAST_BACKUP" ]]; then
-    LAST_BINLOG="0"
+    LAST_BINLOG=$CURRENT_BINLOG
     LAST_POSITION="0"
 fi
 echo ""
 
-# 获取当前binlog文件名和位置
-CURRENT_SBINLOG=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS"   | awk '{print $1}')
-CURRENT_BINLOG=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS"   | awk '{print substr($1, 4)}')
-CURRENT_POSITION=$(mysql -u$userName -p$password -h$host -N -e "SHOW MASTER STATUS" | awk '{print $2}')
-
 echo current_binlog $CURRENT_BINLOG
 echo current_binPostition $CURRENT_POSITION
 # 备份增量变更到文件