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Full Discussion: Ip address sorting
Top Forums Shell Programming and Scripting Ip address sorting Post 302861459 by Subbeh on Wednesday 9th of October 2013 04:11:55 AM
Old 10-09-2013
Did you try the sort command directly on your input file instead of implementing it in your while loop?

Code:

$ cat file
192.168.1.1
192.168.2.2
192.168.1.3
192.168.1.2
192.168.11.1
192.168.1.4
192.168.2.1
$ sort -t . -k 3,3n -k 4,4n file
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.4
192.168.2.1
192.168.2.2
192.168.11.1

 

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AGGREGATE-IOS(1)                                              General Commands Manual                                             AGGREGATE-IOS(1)

NAME
aggregate-ios - optimise a concatenated set of cisco/IOS prefix filters to help make them nice and short. SYNOPSIS
aggregate-ios <source_config >optimised_config DESCRIPTION
Takes cisco IOS configuration on stdin, and optimises any prefix filters found using aggregate(1). Optimised filters are produced on std- out. OPTIONS
None. DIAGNOSTICS
Any diagnostics produced by aggregate(1) are passed through on stderr. EXAMPLES
The following configuration fragment: ip prefix-list AS65530 description Foo, Inc ip prefix-list AS65530 permit 10.1.0.0/16 ip prefix-list AS65530 permit 10.2.0.0/16 ip prefix-list AS65530 permit 10.2.1.0/24 ip prefix-list AS65530 permit 10.3.0.0/16 ip prefix-list AS65531 description Bar.Com ip prefix-list AS65531 seq 5 permit 192.168.1.0/24 ip prefix-list AS65531 seq 10 permit 192.168.2.0/24 ip prefix-list AS65531 seq 15 permit 192.168.0.0/19 is optimised as follows: ip prefix-list AS65530 permit 10.1.0.0/16 le 24 ip prefix-list AS65530 permit 10.2.0.0/15 le 24 ip prefix-list AS65531 permit 192.168.0.0/19 le 24 SEE ALSO
aggregate(1) HISTORY
Aggregate-ios was written by Joe Abley <jabley@mfnx.net>. BUGS
All those in aggregate(1) and then some :) Joe Abley 2000 November 27 AGGREGATE-IOS(1)
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