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Full Discussion: Compare IP addresses and increment
Top Forums Shell Programming and Scripting Compare IP addresses and increment Post 302859807 by Manu1234567 on Thursday 3rd of October 2013 11:58:01 PM
Old 10-04-2013
Compare IP addresses and increment
Basically, I have 2 files with IP address. For example 134.123.3.234 in the first file and 134.123.3.235 in the second. Now I want to create a file with a IP address with IP 134.123.3.236...(max 254). So i have to check files which IP address in previous two files and base on that to create a new file with the next IP address which is 134.123.3.236. I wanted to check last number of IP...If it is 254 then increment +1 to third number....


Code:
for ip in {0..254}
do
if "192.168.${ip}.${j}" > $file
 echo "192.168.${ip}.${j}"> Newfile.txt
for j in {0..254}
 do
if "192.168.${ip}.${j}">$file then 
echo "192.168.${ip}.${j}"> Newfile1.txt
done
done

Basically, this code is not correct. Have no idea how to solve this problem. Hope you will help me....thanks.
Last edited by Don Cragun; 10-04-2013 at 01:36 AM.. Reason: Add CODE tags
 

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LEARN ABOUT DEBIAN

vde_l3

VDE_L3(1)						      General Commands Manual							 VDE_L3(1)

NAME

       vde_l3 - Virtual Distributed Ethernet 'Layer 3' Switch.

SYNOPSIS

       vde_l3 -v vde_plug:ipaddress/netmask [-v...]  [-r target_network/netmask:gateway] [-G default_gw] [-M mgmt_socket]

DESCRIPTION

       A vde_l3 connects to one or more vde_switches, performing ip forwarding among its virtual interfaces. A new interface is created at startup
       for each -v option given at command line. Static routes to target networks can be defined using the -r option.

       vde_l3 -v /var/run/s1.ctl:192.168.0.1/24

       connects to the vde sock at /var/run/s1.ctl with its virtual interface ve0, having the address 192.168.0.1 and netmask 255.255.255.0.

       vde_l3 

       -v /var/run/s1.ctl:192.168.0.1/24 

       -v /var/run/s2.ctl:10.0.0.254/255.255.0.0

       connects to the two vde socks, with its virtual interfaces ve0 and ve1, having addressess 192.168.1.0 and 10.0.0.254 respectively. Hosts in
       each network can specify the vde_l3 as their gateway to reach the other one.

OPTIONS

       -v vde_plug:ipaddress/netmask
	      Creates a virtual network interfaces on the vde_l3 box, with address ipaddress and netmask netmask. Please note that the netmask can
	      be specified either in the 'classic' A.B.C.D mode, or just by giving the number of leading bits (f.e., /17 for 255.255.128.0).   One
	      can define as many interfaces as she wants.

       -r target_network/netmask:gateway
	      Specify  a static route through gateway to reach hosts in target_network with netmask netmask.  One can define as many routes as she
	      wants.

       -G default_gw
	      Specify a default gateway, to be used whenever no static route is defined for a target host.

       -M mgmt_socket
	      the unix socket where the parameters (interfaces addresses, routes, etc.) can be checked and changed  runtime.  unixterm(1)  can	be
	      used as a remote terminal for wirefilter.

NOTICE

       Virtual	Distributed  Ethernet is not related in any way with www.vde.com ("Verband der Elektrotechnik, Elektronik und Informationstechnik"
       i.e. the German "Association for Electrical, Electronic & Information Technologies").

SEE ALSO

       vde_switch(1), vdeq(1), unixterm(1), vde_cryptcab(1), wirefilter(1).

AUTHORS

       VDE_L3 is a tool by Daniele Lacamera <root@danielinux.net>

       VDE is a project by Renzo Davoli <renzo@cs.unibo.it>

Virtual Distributed Ethernet					    May 7, 2007 							 VDE_L3(1)
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