Question

我粘贴了ifconfig命令的输出，并希望将mac地址（00：e0：4c：68：00：26）从整个输出重定向到文件。

eth0      Link encap:Ethernet  HWaddr 00:e0:4c:68:00:26
          inet addr:192.168.10.1  Bcast:192.168.10.255  Mask:255.255.255.0 
          inet6 addr: fe80::2e0:4cff:fe68:26/64 Scope: Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:671 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:4546 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:1000 
          RX bytes:70055 TX bytes:1595889

Answer 1

尝试一下：

我已将ifconfig的输出存储在变量a中：

mayankp@mayank:~/$ echo $a
eth0      Link encap:Ethernet  HWaddr 00:e0:4c:68:00:26
          inet addr:192.168.10.1  Bcast:192.168.10.255  Mask:255.255.255.0 
          inet6 addr: fe80::2e0:4cff:fe68:26/64 Scope: Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:671 errors:0 dropped:0 overruns:0 frame:0 
          TX packets:4546 errors:0 dropped:0 overruns:0 carrier:0 
          collisions:0 txqueuelen:1000 
          RX bytes:70055 TX bytes:1595889

mayankp@mayank:~/$ echo $a| awk -F" " '{print $5}'|head -1 > 'mac_addr.txt'
mayankp@mayank:~/$ cat mac_addr.txt 
00:e0:4c:68:00:26

让我知道它是否有效。

如何grep并将mac地址单独重定向而没有其前缀和后缀到ifconfig命令的文件中？

1 个答案: