diff --git a/src/run2-4.sh b/src/run2-4.sh
new file mode 100644
index 0000000..6985bed
--- /dev/null
+++ b/src/run2-4.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+javac -encoding UTF-8 j2/*.java 
+
+echo "Now, open other terminal, and run EchoClient"
+echo ">>>>   $ java j2/EchoClient";
+echo "         ^^^^^^^^^^^^^^^";
+echo "start ThreadEchoServer"
+java j2/ThreadEchoServer
+
+#echo "type return to exit"
+#read input_str
+