Other operators

PowerShell has a wide variety of operators, a few of which do not easily fall into a specific category, as discussed shortly, including the following:

• Call: &
• Comma: ,
• Format: -f
• Increment and decrement: ++ and --
• Join: -join

Call

The call operator is used to execute a string or script block. For example, the call operator may be used to execute the ipconfig command:

$command = 'ipconfig' 
& $command 

Or it may be used to execute a script block:

$scriptBlock = { Write-Host 'Hello world' } 
& $scriptBlock 

The call operator accepts a list of arguments that can be passed to the command. For example, the displaydns parameter can be passed into the ipconfig command:

& 'ipconfig' '/displaydns'

Comma

The comma operator may be used to separate elements in an array, for example:

$array = 1, 2, 3, 4 

If the comma operator is used before a single value, it creates an array containing one element:

$array = ,1

Format

The -f operator can be used to create complex formatted strings. The syntax...