Mastering Windows PowerShell Scripting - Third Edition

for

The for loop is typically used to step through a collection using the following notation:

for (<intial>; <exit condition>; <repeat>){ 
    <body-statements>} 

<initial> represents the state of a variable before the first iteration of the loop. This is normally used to initialize a counter for the loop.

The exit condition must be true as long as the loop is executing.

<repeat> is executed after each iteration of the body and is often used to increment a counter.

The for loop is most often used to iterate through a collection, for example:

$processes = Get-Process 
for ($i = 0; $i -lt $processes.Count; $i++) { 
    Write-Host $processes[$i].Name} 

The for loop provides a significant degree of control over the loop and is useful where the step needs ...