update

init_bash.sh

@@ -9,7 +9,7 @@ sudo apt upgrade -y
 sudo sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list.d/*
 sudo sed -i 's/security.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list.d/*
 
-
+sudo apt install iputils-ping -y
 # 安装 wget
 sudo apt install wget -y