--- a/src/goodjava/lucene/backup/Backup.java	Sat May 28 21:00:30 2022 -0600
+++ b/src/goodjava/lucene/backup/Backup.java	Sun May 29 23:38:34 2022 -0600
@@ -128,9 +128,9 @@
 	void handleZip(RpcServer rpc) throws IOException {
 		File zip = File.createTempFile("luan_",".zip");
 		IoUtils.delete(zip);
-		String cmd = "zip -r " + zip + " " + dir.getName();
+		String cmd = "zip " + zip + " *";
 		synchronized(this) {
-			Process proc = Runtime.getRuntime().exec(cmd,null,dir.getParentFile());
+			Process proc = Runtime.getRuntime().exec(new String[]{"bash","-c",cmd},null,dir);
 			IoUtils.waitFor(proc);
 		}
 		InputStream in = new BufferedInputStream(new FileInputStream(zip));