如何将ifconfig输出连接到每个接口的线路

如何将以下输出转换为sed？来自：如何将ifconfig输出连接到每个接口的线路

lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 
    inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 
    inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 
    groupname mnic_data

到：

lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 groupname mnic_data

我已经试过

sed -n '/^[a-z]/{x;1!s/\n/ /g;1!p;};H'

，但没有运气！预先感谢您的帮助

来源

2013-07-02 IdaWong

ifconfig | 
awk ' 
    FNR>1 && /^[^[:space:]]/ {print ""} 
    {printf "%s", $0} 
    END {print ""} 
'

来源

2013-07-02 17:25:57

非常简单。谢谢！ – IdaWong

这是否有帮助（awk）？

awk '/:/&&f{print ""}{printf "%s", $0;f=1}'

测试

kent$ echo "lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 
    inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 
    inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 
    groupname mnic_data"|awk '/:/&&f{print ""}{printf "%s", $0;f=1}' 
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 groupname mnic_data

来源

2013-07-02 13:30:19 Kent

如果ifconfig发出ipv6地址或mac地址，它们将会冒号。 –

你可以试试这个：

$ sed -e :a -e '$!N;s/\n//;ta' -e 'P;D' inputfile 
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 groupname mnic_data

编辑：为了摆脱上述输出额外的空间，你可以使用：

$ sed -e :a -e '$!N;s/\n\s\+/ /;ta' -e 'P;D' inputfile 
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 
igb0: flags=9040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2 inet 10.1.1.1 netmask ffffff00 broadcast 10.1.1.255 groupname mnic_data

来源

2013-07-02 13:32:25 devnull

如何将ifconfig输出连接到每个接口的线路

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