linux怎麼檢視有哪些網路卡

linux檢視有哪些網路卡的方法：1、使用「ifconfig -a」命令檢視；2、使用「cat /proc/net/dev」命令檢視；3、使用「lspci | grep -i 'eth'」或「lspci | grep -i net」命令檢視。

本教學操作環境：linux5.9.8系統、Dell G3電腦。

檢視Linux系統有幾塊網路卡

方法1：使用ifconfig -a

ifconfig：最常用的設定和檢視網路介面資訊的命令，伺服器上執行此命令會得到類下文的內容，一下內容可看到多個裝置和裝置狀態、資訊。

[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

可列出每個pci匯流排上的裝置，通過grep過濾後可得到網路卡裝置列表

[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)