diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..7ab6e65
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# for ubuntu
+
+sudo apt install -y python3 python3-pip build-essential python-is-python3
+
+pip install esdk-obs-python --trusted-host pypi.org
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diff --git a/undelete.py b/undelete.py
new file mode 100644
index 0000000..e9b19c3
--- /dev/null
+++ b/undelete.py
@@ -0,0 +1,71 @@
+import os
+import traceback
+from obs import ObsClient, Versions
+
+bucket = input(f"""Insert bucket name: """)
+prefiks = input(f"""Insert prefix for bucket: """)
+
+ak = os.getenv(
+	"AKID"
+)
+
+sk = os.getenv(
+	"SKID"
+)
+
+endpoint = os.getenv(
+	"OBSENDPOINT"
+)
+
+obsClient = ObsClient(
+	access_key_id = ak,
+	secret_access_key = sk,
+	server = endpoint
+)
+
+try:
+
+	undeleteVersions = []
+
+	mark = None
+	index = 1
+	
+	while True:
+
+		listing = obsClient.listVersions(
+			bucket,
+			version = Versions(
+				prefix = prefiks,
+				encoding_type = 'url',
+				key_marker = mark,
+				max_keys = 1000
+			)
+		)
+
+		if listing['status'] < 300:
+			for file_marker in listing['body']['markers']:
+				file_key = file_marker['key']
+				file_version = file_marker['versionId']
+				
+				if file_marker['isLatest'] != True:
+					print(file_marker)
+				else:
+					undeleteObject = obsClient.deleteObject(
+						bucketName = bucket,
+						objectKey = file_key,
+						versionId = file_version
+					)
+
+					if undeleteObject['status'] > 204:
+						print(undeleteObject)
+					else:
+						pass
+			
+			if listing['body']['head']['isTruncated'] == True:
+				mark = listing['body']['head']['nextKeyMarker']
+			else:
+				break
+
+except:
+	print('exception')
+	print(traceback.format_exc())
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