Creating an array in a powershell script

Question

I am trying to figure out a way to dynamically create an array from several variables inside of a powershell script.

I have several variables that will be deffined

$svr_list1 = "svrA", "svrB", "svrC"

$svr_list2 = "svrD", "svrE"

$svr_list3 = "svrF", "svrG"

$svc_list1 = "svcA", "svcB"

$svc_list2 = "svcA", "svcC"

$svc_list3 = "svcD"

I am trying to figure out some list that can pull these together into a single array but only have single groups line up so all servers in svr_list1 will only get the services in svc_list1, list 2 will line up, etc

$arry = [svrA][svcA]

[svrA][svcB]

[svrB][svcA]

[svrB][svcB]

[svrC][svcC]

[svrC][svcB]

[svrD][svcA]

[svrD][svcC]

[svrE][svcA]

[svrE][svcC]

[svrF][svcD]

[svrG][svcD]

I would like to loop this so that i can just update my original variables that are used elsewhere and then this loop would pull together the appropriate list without having to manage it twice.

tszilagyi · Accepted Answer

Ok i found some code that I was able to put together that seems to solve this issue. Posing it here if anyone has any improvements or could use it as well.

$sufixes = @('list1', 'list2', 'list3')

$svr_list1 = "svrA", "svrB", "svrC"

$svr_list2 = "svrD", "svrE"

$svr_list3 = "svrF", "svrG"

$svc_list1 = "svcA", "svcB"

$svc_list2 = "svcA", "svcC"

$svc_list3 = "svcD"

foreach ($sufix in $sufixes)

{

$svr_var = Get-Variable svr_$sufix -valueonly

$svc_var = Get-Variable svc_$sufix -valueonly

foreach ($i in $svr_var)

{

foreach ($j in $svc_var)

{

$array += ,@($i,$j)

}

$array

This seems to update accordingly for me, now in my code i just need to maintain the server and service lists and if i add a new one just update and add the additional suffix. I did see something about using array lists being better than the " += " functionality as it needs to duplicate the array in memory however my lists are pretty small right now.

Creating an array in a powershell script

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