Linux版本查询
uname -r
uname -a
cat /proc/version
cat /etc/redhat-release
CPU相关查询
cat /proc/cpuinfo
ip地址查询
ip addr
ifconfig
查询开机自启动
systemctl list-unit-files
systemctl list-unit-files -t service --state=enabled
systemctl list-unit-files --type=service --state=enabled