Echo equivalent in PowerShell for script testing

It should also be mentioned, that [Set-PSDebug](

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) is similar to the old-school `echo on` batch command:

```powershell
Set-PSDebug -Trace 1
```

This command will result in showing every line of the executing script:

> When the `Trace` parameter has a value of `1`, each line of script is traced as it runs. When the parameter has a value of `2`, variable assignments, function calls, and script calls are also traced. If the `Step` parameter is specified, you're prompted before each line of the script runs.

Powershell has an alias mapping `echo` to `Write-Output`, so you can use:

echo "filesizecounter : $filesizecounter"