linux怎么查看有哪些网卡

linux查看有哪些网卡的方法：1、使用“ifconfig -a”命令查看；2、使用“cat /proc/net/dev”命令查看；3、使用“lspci | grep -i 'eth'”或“lspci | grep -i net”命令查看。

本教程操作环境：linux5.9.8系统、Dell G3电脑。

查看Linux系统有几块网卡

方法1：使用ifconfig -a

ifconfig： 最常用的配置和查看网络接口信息的命令，服务器上执行此命令会得到类下文的内容，一下内容可看到多个设备和设备状态、信息。

[root@xuegod65 ~]# ifconfig -a eth0      Link encap:Ethernet  HWaddr 00:0C:29:04:08:91             inet addr:192.168.1.250  Bcast:192.168.1.255  Mask:255.255.255.0           inet6 addr: fe80::20c:29ff:fe04:891/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:14454 errors:0 dropped:0 overruns:0 frame:0           TX packets:961 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:1174828 (1.1 MiB)  TX bytes:112979 (110.3 KiB)  eth1      Link encap:Ethernet  HWaddr 00:0C:29:04:08:9B             inet addr:192.168.240.1  Bcast:192.168.240.255  Mask:255.255.255.0           inet6 addr: fe80::20c:29ff:fe04:89b/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:112 errors:0 dropped:0 overruns:0 frame:0           TX packets:90 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:9334 (9.1 KiB)  TX bytes:8366 (8.1 KiB)  lo        Link encap:Local Loopback             inet addr:127.0.0.1  Mask:255.0.0.0           inet6 addr: ::1/128 Scope:Host           UP LOOPBACK RUNNING  MTU:16436  Metric:1           RX packets:0 errors:0 dropped:0 overruns:0 frame:0           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0            RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

方法2：使用cat /proc/net/dev

[root@xuegod65 ~]# cat /proc/net/dev Inter-|   Receive                                                |  Transmit  face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed     lo:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0   eth0: 1190124   14635    0    0    0     0          0         0   119423     999    0    0    0     0       0          0   eth1:    9334     112    0    0    0     0          0         0     8366      90    0    0    0     0       0          0

方法3：使用lspci | grep -i 'eth' 或 lspci | grep -i net

可列出每个pci总线上的设备，通过grep过滤后可得到网卡设备列表

[oracle@mori ~]$ lspci |grep -i 'eth'    02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)    02:06.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)   [oracle@mori ~]$ lspci | grep -i net    02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)    02:06.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)