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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?

ayi

<t>In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?</t>

ayi

<t>Try this on the PowerShell command line:<br/>
<br/>

. .\MyFunctions.ps1<br/>
A1<br/>
<br/>
```<br/>
<br/>
The dot operator is used for script include, aka "dot-sourcing" (or ["dot source notation"](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_scopes?view=powershell-5.1#using-dot-source-notation-with-scope))</t>