[root@kvm8 ~]# dnf install nfs-utils
[root@kvm8 ~]# showmount --help
Usage: showmount [-adehv]
[--all] [--directories] [--exports]
[--no-headers] [--help] [--version] [host]
[root@kvm8 ~]# showmount -e deyu.wang Export list for deyu.wang: /rhome 192.168.122.0/24 /home/guests 192.168.122.0/24