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awk multiple filed separators

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# 1  
Old 02-18-2015
awk multiple filed separators
There is an usual ifconfig output
Code:
vlan30    Link encap:Ethernet  HWaddr 
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: 2407:4c00:0:1:aaff::1/64 Scope:Global
          inet6 addr: fe80::224:e8ff:fe6b:cc4f/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:2120006020 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1406147485 errors:0 dropped:4 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:551134294249 (513.2 GiB)  TX bytes:1861413123515 (1.6 TiB)

vlan300   Link encap:Ethernet  HWaddr
          inet addr:10.11.0.252  Bcast:10.11.0.255  Mask:255.255.255.0
          inet6 addr: fe80::224:e8ff:fe6b:cc4f/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:9153450 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52124 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2908382748 (2.7 GiB)  TX bytes:4648270 (4.4 MiB)

vlan66   Link encap:Ethernet  HWaddr
          inet addr:172.16.0.93  Bcast:0.0.0.0  Mask:255.255.255.0
          inet6 addr: fe80::224:e8ff:fe6b:cc4f/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:17439859 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7596288 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1527167233 (1.4 GiB)  TX bytes:733513154 (699.5 MiB)

I want to grab IP addresses from this output. I tried
Code:
ifconfig |awk -F'[: ]' '/inet addr:/ {print $2}'
ifconfig |awk -F':| ' '/inet addr:/ {print $2}'
ifconfig |awk ' BEGIN{FS=" |:"} /inet addr:/ {print $2}'

but i get no output at all.
OS: centos
# 2  
Old 02-18-2015
Two issues:

1. looks like lots of spaces at the front of the line you could use 1 or more space or colon as field separator
2. IP Address is field 4 (1=blank; 2=inet; 3=addr; 4=192.168.0.1)

Code:
ifconfig | awk -F '[ :]+' '/inet/ {print $4}'

This User Gave Thanks to Chubler_XL For This Post:
urello
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