diff --git a/shutdown_all.sh b/shutdown_all.sh
index 961260d..0218147 100644
--- a/shutdown_all.sh
+++ b/shutdown_all.sh
@@ -1 +1,2 @@
+# mac设备上的grep命令可能不支持grep -P选项，请使用Homebrew安装;或使用ggrep命令
 ps -eo pid,user,cmd|grep -P 'server/api.py|webui.py|fastchat.serve'|grep -v grep|awk '{print $1}'|xargs kill -9
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