Question on Hashtables

[rock0n]

Hi there,

i've two (simple) questions. Maybe anybody can give me an (simple) answer 🙂

This is the statement:

$vm | select Name, @{N="IPAddress"; E={ $_ | Get-VMGuest | select -ExpandProperty IP*}}

The Questions.

1. Why do i have to use E in the middle of the statement?

2  What does E stand for?

Thanks!

[RvdNieuwendijk · Accepted solution]

With @{} you are creating a hash table. The N stands for Name and the E for Expression. So you could also write:

$vm | select Name, @{Name="IPAddress"; Expression={ $_ | Get-VMGuest | select -ExpandProperty IP*}}

Regards, Robert

[rock0n]

3 minutes... Awesome 🙂

Thank you!

[mattboren]

Hello, rock0n-

Robert has it right on for you.

There is some good info on this hash table and how it is used for "calculated properties" in the TechNet page at http://technet.microsoft.com/en-us/library/ff730948.aspx.

Also, getting full help on the Format-Table cmdlet talks about the other valid keys for a calculated property hash table (see the -Property portion), like Width and Alignment.

[rock0n]

Hi mattboren,

that was the "dumb and outa vmware" example i was looking for 😉

thanks!