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Shell Programming and Scripting
Pattern matching in Perl
Post 302664633 by X-Or on Saturday 30th of June 2012 05:18:07 AM
06-30-2012
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i can only find the first occurance of a pattern how do i set it to loop untill all occurances have changed.
#! /usr/bin/perl
use POSIX;
open (DFH_FILE, "./dfh") or die "Can not read file ($!)";
foreach (<DFH_FILE>) {
if ($_ !~ /^#|^$/) {
chomp;
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I got the below one from in one of this forums
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Hi,
I got doubt in Pattern matching, could you tell me how the following differs in action ??
if ( $line1==/$line2/ )
if ( $line1=~/$line2/ )
if ( $line1=~m/$line2/)
What is the significance of '~' in matching.
Thanks in advance
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----------
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-------------------
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LEARN ABOUT DEBIAN
aggregate-ios
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)