is it possible to cat this file from powercli?
If the ESXi node is running in a VM, then VMware Tools should be installed and you can use Invoke-VMScript.If SSH is enabled on that ESXi node you could also use the Posh-Ssh module and for example the Get-ScpItem cmdlet.Samples of both methods can be found in this community.
Blog: lucd.info Twitter: @LucD22 Co-author PowerCLI Reference