curl: command not found、-bash: wget: command not found

提示没有安装 Curl
ubuntu/debian 系统安装 Curl 方法:
apt-get update -y && apt-get install curl -y

centos 系统安装 Curl 方法:
yum update -y && yum install curl -y

提示没安装 wget -bash: wget: command not found
yum -y install wget