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Full Discussion: Please give your inputs !!!!
Top Forums Shell Programming and Scripting Please give your inputs !!!! Post 302115405 by Deal_NoDeal on Tuesday 24th of April 2007 03:34:02 PM
Old 04-24-2007
Quote:
Originally Posted by kpatel786
I am trying to extract two fields from the output of ifconfig command on one of my sun server . The output looks like :
root@e08k18:/tmp/test# ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
ce0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 10.177.4.61 netmask ffffff00 broadcast 10.177.4.255
groupname ipmp0
ether 0:3:ba:6c:7f:2e

I require output as field1 filed2 for all the interfaces ...but when I try
la0 127.0.01
ce0 10.177.4.61

# ifconfig |awk -F ":" {print $1 $3)'

However I am not getting the required output.
Any clue in this regard will be of great help.
Thanking you in advance.
The output of ifconfig are in different lines. You will have to join the lines and then maybe use awk. An example would be like this:

-------------
#!/bin/sh

ifconfig -a | awk -F":" '{print $1}' |
awk 'BEGIN {x = 0}
{
if (x<2) {
printf("%s ",$0)
x=x+1
}
if (x==2) {
printf("\n")
x = 0
}
}' | awk '{print $1, $3}'
-------------
 

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LEARN ABOUT PLAN9

inet_type

inet_type(4)                                                       File Formats                                                       inet_type(4)

NAME

       inet_type - default Internet protocol type

SYNOPSIS

       /etc/default/inet_type

DESCRIPTION

       The inet_type file defines the default IP protocol to use. Currently this file is only used by the ifconfig(1M) and netstat(1M) commands.

       The  inet_type  file  can  contain  a  number of <variable>=<value> lines. Currently, the only variable defined is DEFAULT_IP, which can be
       assigned a value of IP_VERSION4, IP_VERSION6, or BOTH.

       The output displayed by the ifconfig and netstat commands can be controlled by the value of DEFAULT_IP set in inet_type file.  By  default,
       both commands display the IPv4 and IPv6 information available on the system. The user can choose to suppress display of IPv6 information by
       setting the value of DEFAULT_IP.  The following shows the possible values for DEFAULT_IP and the resulting ifconfig and netstat output that
       will be displayed:

       IP_VERSION4     Displays only IPv4 related information. The output displayed is backward compatible with older versions of the ifconfig(1M)
                       and netstat(1M) commands.

       IP_VERSION6     Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       BOTH            Displays both IPv4 and IPv6 related information for ifconfig and netstat.

       The command-line options to the ifconfig and netstat commands override the effect of DEFAULT_IP as set in the inet_type file. For  example,
       even if the value of DEFAULT_IP is IP_VERSION4, the command

       example% ifconfig -a6

       will display all IPv6 interfaces.

EXAMPLES

       Example 1: Suppressing IPv6 Related Output

       This is what the inet_type file must contain if you want to suppress IPv6 related output:

       DEFAULT_IP=IP_VERSION4

SEE ALSO

       ifconfig(1M), netstat(1M)

SunOS 5.10                                                          16 Jun 1999                                                       inet_type(4)
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