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Top Forums Shell Programming and Scripting How to check internet connection? Post 302998605 by Aia on Sunday 4th of June 2017 09:06:03 PM
Old 06-04-2017
Quote:
Originally Posted by RudiC
Code:
ping -c1 unix.com &>/dev/null && echo "online" || echo "offline"
online

I wouldn't do just one ping (-c1). It is quite normal for the first ping to fail if there's not ARP table entry, and it would not be an indication that the node has lost network connectivity.

-c 3 or perhaps even -c 5 I would consider a more reliable metric.
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Wiki::Toolkit::Plugin::Ping(3pm)			User Contributed Perl Documentation			  Wiki::Toolkit::Plugin::Ping(3pm)

NAME
Wiki::Toolkit::Plugin::Ping - "ping" various services when nodes are written SYNOPSIS
use Wiki::Toolkit::Plugin::Ping; my $ping = Wiki::Toolkit::Plugin::Ping->new( node_to_url => 'http://mywiki/$node', services => { "geourl" => 'http://geourl.org/ping?p=$url' }, agent => "My Wiki ping agent", ); $wiki->register_pugin( plugin => $ping ); DESCRIPTION
A plug-in for Wiki::Toolkit sites, which will "ping" various external services when a node is written. A list of the services to ping, and where in their URLs to add the URL of the node, are supplied when the plugin is created. You need to tell it how to turn a node into a URL (node_to_url), and what services to ping (services). You can optionally pass a custom user-agent string AUTHOR
The Wiki::Toolkit team (http://www.wiki-toolkit.org/) COPYRIGHT
Copyright (C) 2003-2004 I. P. Williams (ivorw_openguides [at] xemaps {dot} com). Copyright (C) 2006-2009 the Wiki::Toolkit team (http://www.wiki-toolkit.org/) All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Wiki::Toolkit, Wiki::Toolkit::Plugin, OpenGuides perl v5.10.1 2009-02-24 Wiki::Toolkit::Plugin::Ping(3pm)
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