=~脚本样例

#!/bin/bash
#test.sh

arch_version=$(arch)
os_version=$(cat /etc/redhat-release)
echo $os_version

if [[ "$arch_version" == "x86_64" ]] &&  [[ "$os_version" =~ ^"Red Hat Enterprise Linux Server release 7".* ]]
then
     echo "OS is ok"
fi