diff --git a/stocheck.sh b/stocheck.sh
new file mode 100644
index 0000000..6364a68
--- /dev/null
+++ b/stocheck.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+# license: gpl-3
+
+if [[ $(curl -s https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh | md5sum | cut -c -32) != $(md5sum $0 | cut -c -32) ]] && [[ -z $1 ]] || [[ $(curl -s https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh | md5sum | cut -c -32) != $(md5sum $0 | cut -c -32) ]] && [[ $1 != "--update" ]] || [[ $(curl -s https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh | md5sum | cut -c -32) != $(md5sum $0 | cut -c -32) ]] && [[ $1 != "-u" ]];then
+  echo "#############################################"
+  echo -e "\e[4mnote: newer version detected, use -u to update\e[0m"
+  echo "#############################################"
+  echo ""
+fi
+while [ ! -n "$1" ]; do
+if [[ -n $(ls /sys/block | grep sd) ]];then
+    echo "===  sata drive check: ==="
+    for x in {a..z};do
+      if [[ -n $(smartctl --scan | grep /dev/sd$x) ]];then
+        echo "------------------- /dev/sd$x --------------------";
+        smartctl -H -i /dev/sd$x;
+        echo "-----------------------------------------------------";
+      fi
+    done
+if [[ -n $(ls /dev | grep nvme) ]];then
+    echo "===  nvme drive check: ==="
+    for x in {0..4};do
+	    echo "------------------- /dev/nvme$x --------------------";
+	    smartctl -H -i /dev/nvme$x;
+	    echo "---------------------------------------------------------";
+    exit
+    done
+else
+    exit
+fi
+fi
+done
+while [ ! -z "$1" ]; do
+      if [[ $1 == "-u" ]] || [[ "$1" == "--update" ]];then
+        if [[ $(curl -s https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh | md5sum | cut -c -32) != $(md5sum $0 | cut -c -32) ]];then
+          wget -O $0 --quiet "https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh"
+          echo "#############################################"
+          echo -e "\e[4mscript has been updated to the newest version\e[0m"
+          echo "#############################################"
+          exit
+        elif [[ $(curl -s https://raw.githubusercontent.com/byReqz/stocheck/main/stocheck.sh | md5sum | cut -c -32) = $(md5sum $0 | cut -c -32) ]];then
+         echo "#############################################"
+         echo "no newer version found"
+         echo "#############################################"
+         exit
+        fi
+      fi
+done