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Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Thank you. 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. 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. This example demonstrates the use of Invoke-Expression to evaluate an expression.
Without Invoke-Expression , the expression is printed, but not evaluated. The second command shows the effect of typing the variable name at the command line. PowerShell echoes the string. These commands use Invoke-Expression to run a script, TestScript.
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