diff --git a/tools/ftp-umount.php b/tools/ftp-umount.php
new file mode 100644
index 00000000..7349ffba
--- /dev/null
+++ b/tools/ftp-umount.php
@@ -0,0 +1,37 @@
+<?php
+	$link = pg_connect("dbname=metadata user=gis password=gispassword host=210.77.68.241");
+	if (!$link) 
+	{
+		die("Error in connection: " . pg_last_error());
+	}
+	$sql="select dataorder.userid,dataset.path from dataorder left join dataset on dataorder.uuid=dataset.uuid 
+		where dataorder.status in (0,5) and dataset.host='ftp2.westgis.ac.cn' and dataset.path<>''
+		and dataorder.ts_approved<now()-interval '3 months'
+		and dataorder.ts_approved>=now()-interval '4 months'
+		and dataorder.selection is null";
+	$result = pg_query($link, $sql);
+	$numrows = pg_num_rows($result);
+
+   $content='';
+	for($ri = 0; $ri < $numrows; $ri++) 
+	{
+		$row = pg_fetch_array($result, $ri);
+		$content.='# path: '.$row['path']."\n";
+		$content.='umount "/home/ftp/westdc_'.$row['userid'].'/'.preg_replace('/^.+[\\\\\\/]/', '', rtrim($row['path'],'/')).'"'."\n";
+   }
+
+   $filename='./ftp-umount.sh';
+   if (!empty($content)) 
+   	if (!file_put_contents($filename, $content, LOCK_EX))
+   	{
+   		sleep(1);
+   		if (!file_put_contents($filename, $content, LOCK_EX))
+   		{
+   			sleep(1);
+   			if (!file_put_contents($filename, $content, LOCK_EX))
+   				die("error in write proftp-user.sh");
+   		}
+   	}
+	pg_free_result($result);
+	pg_close($link);
+?>
\ No newline at end of file