[linux] 產生 ethX uuid

# uuidgen eth0
a4c64ff7-4882-4e7d-8119-b46dc04c05aa
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
UUID=a4c64ff7-4882-4e7d-8119-b46dc04c05aa