一、使用的系統是centos系統，剛搭建好的cent 最小安裝模式是沒有ifconfig命令的。
[root@bogon ~]
# ifconfig
-bash: ifconfig: 未找到命令
[root@bogon network-scripts]
# cd /etc/sysconfig/network-scripts/
[root@bogon network-scripts]
# ls
ifcfg-ens33
[root@bogon network-scripts]
# vi ifcfg-ens33
type=
"ethernet"
proxy_method=
"none"
browser_only=
"no"
bootproto=
"dhcp"
defroute=
"yes"
ipv4_failure_fatal=
"no"
ipv6init=
"yes"
ipv6_autoconf=
"yes"
ipv6_defroute=
"yes"
ipv6_failure_fatal=
"no"
ipv6_addr_gen_mode=
"stable-privacy"
name=
"ens33"
uuid=
"cfb1ad91-2690-47ed-9fcf-3ebefdd5bd1c"
device=
"ens33"
onboot=
"yes"
[root@bogon network-scripts]
# yum install net-tools
[root@bogon network-scripts]
# ipconfig
-bash: ipconfig: 未找到命令
[root@bogon network-scripts]
# ifconfig
ens33: flags=4163 mtu 1500
inet 192.168.238.130 netmask 255.255.255.0 broadcast 192.168.238.255
inet6 fe80::2a89:3fee:b7ad:da34 prefixlen 64 scopeid 0x20
ether 00:0c:29:10:6d:06 txqueuelen 1000 (ethernet)
rx packets 7383 bytes 9745045 (9.2 mib)
rx errors 0 dropped 0 overruns 0 frame 0
tx packets 3366 bytes 223498 (218.2 kib)
tx errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (local loopback)
rx packets 0 bytes 0 (0.0 b)
rx errors 0 dropped 0 overruns 0 frame 0
tx packets 0 bytes 0 (0.0 b)
tx errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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