Linux中ifconfig命令不显示IP地址

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$ ifconfigbash: ifconfig: command not found

环境：

非root用户登录

$ lsb_release -aLSB Version:    :core-3.0-amd64:core-3.0-ia32:core-3.0-noarch:graphics-3.0-amd64:graphics-3.0-ia32:graphics-3.0-noarchDistributor ID: CentOSDescription:    CentOS release 4.3 (Final)Release:        4.3Codename:       Final

解决：

$ whereis ifconfigifconfig: /sbin/ifconfig.old /sbin/ifconfig /usr/share/man/man8/ifconfig.8.gz /usr/share/man/man8/ifconfig.8

$ /sbin/ifconfigeth1      Link encap:Ethernet  HWaddr XXXXXXX          inet addr:XXXXXXXXX  Bcast:XXXXXXXX  Mask:255.255.255.128          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:740194638 errors:0 dropped:398 overruns:0 frame:15          TX packets:1409116497 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:622505947542 (579.7 GiB)  TX bytes:1299620061208 (1.1 TiB)          Interrupt:36 lo        Link encap:Local Loopback            inet addr:127.0.0.1  Mask:255.0.0.0          UP LOOPBACK RUNNING  MTU:16436  Metric:1          RX packets:590278628 errors:0 dropped:0 overruns:0 frame:0          TX packets:590278628 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:121711705636 (113.3 GiB)  TX bytes:121711705636 (113.3 GiB)

解决二：

查看登录用户的path：

$ echo $PATH

path中没有 /sbin/ifconfig ，添加到path中：

$ export PATH=$PATH:/sbin

再次执行：

$ ifconfigeth1      Link encap:Ethernet  HWaddr XXXXXXXXX          inet addr:XXXXXXXX  Bcast:XXXXXXX  Mask:255.255.255.128          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:740213476 errors:0 dropped:398 overruns:0 frame:15          TX packets:1409138987 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:622508623742 (579.7 GiB)  TX bytes:1299632841268 (1.1 TiB)          Interrupt:36 lo        Link encap:Local Loopback            inet addr:127.0.0.1  Mask:255.0.0.0          UP LOOPBACK RUNNING  MTU:16436  Metric:1          RX packets:590326935 errors:0 dropped:0 overruns:0 frame:0          TX packets:590326935 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0           RX bytes:121723122294 (113.3 GiB)  TX bytes:121723122294 (113.3 GiB)

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