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Full Discussion: Check null value in xml
Top Forums Shell Programming and Scripting Check null value in xml Post 302775063 by Neethu on Monday 4th of March 2013 04:14:45 AM
Old 03-04-2013
Check null value in xml

Hi,

I have a log file which is having some xml tags. I need to check the value for a particular xml field is null or not and if it is null i have to add current time as the value for that xml field.

I tried below code to check whether the word count is 0. But even if the xml field is null it is showing the count as 1.

Code:
if [ `cat Log.out | grep "<timestamp1>.*</timestamp1>" | wc -l` -gt 0 ]
then
echo timestamp is not empty
fi

 

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Net::EPP::Frame::Command::Check::Host(3pm)		User Contributed Perl Documentation		Net::EPP::Frame::Command::Check::Host(3pm)

NAME
Net::EPP::Frame::Command::Check::Host - an instance of Net::EPP::Frame::Command::Check for host objects. SYNOPSIS
use Net::EPP::Frame::Command::Check::Host; use strict; my $check = Net::EPP::Frame::Command::Check::Host->new; $check->addHost('example-1.tld'); $check->addHost('example-2.tld'); $check->addHost('example-2.tld'); print $check->toString(1); This results in an XML document like this: <?xml version="1.0" encoding="UTF-8"?> <epp xmlns="urn:ietf:params:xml:ns:epp-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd"> <command> <check> <host:check xmlns:host="urn:ietf:params:xml:ns:host-1.0" xsi:schemaLocation="urn:ietf:params:xml:ns:host-1.0 host-1.0.xsd"> <host:name>ns0.example-1.tldE<lt>/host:name> <host:name>ns1.example-2.tldE<lt>/host:name> <host:name>ns2.example-3.tldE<lt>/host:name> </host:check> </check> <clTRID>0cf1b8f7e14547d26f03b7641660c641d9e79f45</clTRIDE<gt> </command> </epp> OBJECT HIERARCHY
L<XML::LibXML::Node> +----L<XML::LibXML::Document> +----L<Net::EPP::Frame> +----L<Net::EPP::Frame::Command> +----L<Net::EPP::Frame::Command::Check> +----L<Net::EPP::Frame::Command::Check::Host> METHODS
$frame->addHost($host_name); This adds a hostname to the list of hosts to be checked. AUTHOR
CentralNic Ltd (http://www.centralnic.com/). COPYRIGHT
This module is (c) 2012 CentralNic Ltd. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
o Net::EPP::Frame perl v5.14.2 2012-04-23 Net::EPP::Frame::Command::Check::Host(3pm)
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