Other operators

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

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

Each of these operators is in common use. The call operator can run a command based on a string, to the format operator which can be used to build up complex strings, and so on.

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 using a variable:

$command = 'ipconfig' 
& $command 

Or, it may be used to execute a scriptBlock:

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