[root@test ~]# nmcli c
NAME UUID TYPE DEVICE
eth0 7d412d6c-d2b4-4561-b5f5-7260b23bb3b5 802-3-ethernet eth0
eth2 3a73717e-65ab-93e8-b518-24f5af32dc0d 802-3-ethernet eth2
eth1 9c92fad9-6ecb-3e6c-eb4d-8a47c6f50c04 802-3-ethernet eth1
The command nmcli c is an abbreviated form of nmcli connection. They are equal. By the way, the column NAME and DEVICE map to the attribute NAME and DEVICE respectively in the configuration file.
[root@test ~]# egrep '^(NAME|DEVICE)' /etc/sysconfig/network-scripts/ifcfg-eth2
NAME=eth2
DEVICE=eth2
Another way to know UUID of a specific NIC:
[root@test ~]# grep UUID /etc/sysconfig/network-scripts/ifcfg-eth2
UUID=3a73717e-65ab-93e8-b518-24f5af32dc0d