switch

A switch statement executes statements where a case evaluates to true. The case can be a number, a string, or any other value. Switch is similar in some respects to an if, elseif, or else statement. The key difference is that, in switch, more than one condition can match the value being tested.

A switch statement uses the following generalized notation:

switch [-regex|-wildcard|-exact][-casesensitive] (<value>) { 
    <case>   { <statements> } 
    <case>   { <statements> } 
    default  { <statements> }
}

The value is the "subject" of the switch statement; it is compared to each of the cases in turn.

The casesensitive parameter applies when the cases are strings.

Each case is evaluated in turn and, by default, any matching cases will execute. The default case is optional and will only be executed if no other case matches as shown here:

$value = 2 
switch ($value) { 
    1       { Write-Host 'value...