PowerShell for Windows Admins

Feb 28 2018   10:58AM GMT

PowerShell while

Richard Siddaway Richard Siddaway Profile: Richard Siddaway


PowerShell has a number of looping structures – do; while; for; foreach. This is how the PowerShell while loop works

The while statement has the form:

while (<condition>){<statement list>}

The while loop is probably the simplest of the PowerShell loops. For example:

$x = 0
while ($x -lt 5){
Write-Host “`$x is $x”


$x is 0
$x is 1
$x is 2
$x is 3
$x is 4

As long as the condition is true the statement list is executed

The condition is evaluated BEFORE the loop is executed meaning that it may never run

PS> $x = 10
while ($x -lt 5){
Write-Host “`$x is $x”


The value of $x is greater than 4 so the loop never executes.

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