=== report eth0 ===
rc=1
=== cmd injection x;id ===
failed to open ifcfg-x;id: No such file or directory
rc2=1
=== cmd injection backtick ===
failed to open ifcfg-x`id`: No such file or directory
rc3=1
=== list ifcfg files ===
ifcfg-eth0
ifcfg-eth0:10
ifcfg-eth0:11
ifcfg-eth0:5
ifcfg-eth0:6
ifcfg-eth0:7
ifcfg-eth0:8
ifcfg-eth0:9
ifcfg-eth1
ifcfg-lo
ifdown
ifdown-bnep
ifdown-eth
ifdown-ippp
ifdown-ipv6
ifdown-isdn
ifdown-post
ifdown-ppp
ifdown-routes
ifdown-sit
ifdown-tunnel
ifup
ifup-aliases
ifup-bnep
ifup-eth
ifup-ippp
ifup-ipv6
ifup-isdn
ifup-plip
ifup-plusb
ifup-post
ifup-ppp
ifup-routes
ifup-sit
ifup-tunnel
ifup-wireless
init.ipv6-global
net.hotplug
network-functions
network-functions-ipv6