CmdID / PowerShell / Cmdlets / Invoke
Invoke-Expression
Runs commands or expressions on the local computer. PowerShell reference
From the PowerShell reference
1 parameter
Alias iex
5 Sigma rules look for it
What it does
Runs commands or expressions on the local computer. The Invoke-Expression cmdlet evaluates or runs a specified string as a command and returns the results of the expression or command. Without Invoke-Expression, a string submitted at the command line is returned (echoed) unchanged. Expressions are evaluated and run in the current scope. For more information, see about_Scopes. CAUTION: Take reasonable precautions when using the Invoke-Expression cmdlet in scripts. When using Invoke-Expression to run a command that the user enters, verify that the command is safe to run before running it. In general, it is best to design your script with predefined input options, rather than allowing freeform input.
Invoke-Expression [-Command] <String> [<CommonParameters>]Evaluate an expression
$Command = "Get-Process"
$CommandIdentifyRun a script on the local computer
Invoke-Expression -Command "C:\ps-test\testscript.ps1"
"C:\ps-test\testscript.ps1" | Invoke-ExpressionIdentifyRun a command in a variable
$Command = 'Get-Process | where {$_.CPU -gt 1000}'
Invoke-Expression $CommandIdentifyGet and run a cmdlet Help example
$Cmdlet_name = "Get-ComputerInfo"
$Example_number = 1
$Example_code = (Get-Help $Cmdlet_name).examples.example[($Example_number-1)].code
Invoke-Expression $Example_codeIdentifyIts page in the reference: Invoke-Expression.
Parameters
-CommandSpecifies the command or expression to run. Type the command or expression or enter a variable that contains the command or expression. The Command parameter is required.