From 180905ecba43d2e8b29240fd00052b4a4054e073 Mon Sep 17 00:00:00 2001
From: JimChenWYU <imjimchen@163.com>
Date: Tue, 24 Sep 2024 15:09:31 +0800
Subject: [PATCH] POSIX Shell

---
 scripts/probe.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/probe.sh b/scripts/probe.sh
index c85de2f8..150ca636 100644
--- a/scripts/probe.sh
+++ b/scripts/probe.sh
@@ -1,11 +1,14 @@
-#!/bin/bash
+#!/bin/sh
+
+# Please use POSIX Shell
+# https://www.grymoire.com/Unix/Sh.html
 
 IP=127.0.0.1
 PORT=9000
 
 while true; do
     nc -zv ${IP} ${PORT}
-    if [[ "$?" == "0" ]]; then
+    if [ "$?" == "0" ]; then
         exit 0
     fi
     sleep 2