diff --git a/MQTT.py b/MQTT.py
index 501de0f..36b02c5 100644
--- a/MQTT.py
+++ b/MQTT.py
@@ -29,6 +29,8 @@ class MQTT:
             #  git更新项目和配置文件
             update()
             client.publish('success', payload='update success', qos=0)
+        elif data == "record":
+            get_record(msg)
         else:
             client.publish('error', payload='No Such Type', qos=0)
 
diff --git a/cron_delete_mp4.sh b/cron_delete_mp4.sh
new file mode 100644
index 0000000..1a04e16
--- /dev/null
+++ b/cron_delete_mp4.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# 设置文件保留时间为2天
+DAYS=2
+
+# 使用find命令查找所有符合条件的文件
+find /home/pi/mp4 -type f -mtime +$DAYS -exec rm -f {} \;
+
diff --git a/delete_than24.sh b/delete_than24.sh
index ec7e983..690b7a2 100755
--- a/delete_than24.sh
+++ b/delete_than24.sh
@@ -4,13 +4,11 @@ set -e
 folder="/home/pi/mp4"
 
 # 获取文件夹的大小  
-size=$(du -sh "$folder" | awk '{print int($1/1024/1024)}')  
-echo $size
+size=$(du -sh "$folder" | awk '{print int($1/1024/1024)}')
 while [[ $size -gt 24 ]]
 do
   # 获取最早创建的文件
   oldest_file=$(ls -tr | head -1 | xargs)
-  echo $oldest_file 
   rm -f $oldest_file
   size=$(du -sh "$folder" | awk '{print int($1/1024/1024)}')
   if [[ $size -le 24 ]]
diff --git a/tool.py b/tool.py
index dbeedae..e52ee8b 100644
--- a/tool.py
+++ b/tool.py
@@ -12,9 +12,12 @@ def close_stream():
 
 def exec_sh(msg):
     cmd = json.loads(msg.payload.decode('utf-8'))["data"]
-
     subprocess.Popen([cmd], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
 
 def update():
     subprocess.Popen(['/bin/bash update.sh'], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+
+def get_record(msg):
+    time = json.loads(msg.payload.decode('utf-8'))["data"]