Powershell – Part 4 – Arrays and For Loops

Tome's Land of IT

Arrays

For those that have never worked with arrays here’s a great way to understand them:  If a variable is a piece of paper then the stack of papers is an array.  It’s a list of variables or objects, and every programming/scripting language has ways to store these variables or objects linearly so you can access them later via a number of different methods.

So let’s look at how we can create an array of string objects in powershell:

$array = @("test1", "test2", "test3")$array

You can also add an element to the end of an array:

$array = @("test1", "test2", "test3")$array += "test4"$array

You can also add arrays together:

$array = @("test1", "test2", "test3")
$array2 = @("test4", "test5")
$array = $array + $array2
$array

You can access an element of an array if you know the index number of the element you want.  Arrays are indexed by…

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