If you’re looking for a simple, quick starter guide to setting up a basic Puppet master/agent between VM’s then you should take a look at this blog I came across from a Google search. I’m putting this here as a bookmark to myself:

http://www.6tech.org/2013/01/how-to-install-puppet-open-source-on-centos-6-3/

Edit:

Pushing an example shell script to some agents (puppetnode):

[master ~]# cat /etc/puppet/manifests/site.pp
node "puppetnode"
{
	file { "/usr/local/bin/repoconf.sh" :
		mode => 0755,
		owner => root,
		group => root,
		source => "puppet:///modules/bin/repoconf.sh"
	}
	exec { "/usr/local/bin/repoconf.sh" :
		require => File["/usr/local/bin/repoconf.sh"]
	}
	package { "nc" :
		ensure => latest,
		require => Exec["/usr/local/bin/repoconf.sh"]
	}
}

[master ~]# cat /etc/puppet/modules/bin/files/repoconf.sh
#!/bin/bash
echo `date` >> /tmp/custom.puppet.sh.log

[puppetnode ~]# puppet agent -t
Info: Retrieving plugin
Info: Caching catalog for puppetnode
Info: Applying configuration version '1386822999'
Notice: /Stage[main]/Main/Node[puppetnode]/File[/usr/local/bin/repoconf.sh]/ensure: defined content as '{md5}dfd896a6b7b57885fac7bac43f2bd263'
Notice: /Stage[main]/Main/Node[puppetnode]/Exec[/usr/local/bin/repoconf.sh]/returns: executed successfully
Notice: /Stage[main]/Main/Node[puppetnode]/Package[nc]/ensure: created
Notice: Finished catalog run in 6.84 seconds