Converting the FileSystemObject's CreateTextFile Method
Definition: Creates a new text file.
The New-Item cmdlet can be used to create a new file. You simply need to specify the folder in which you want to create the file, the name of the new file, and the type of item you’re creating (in this case a file). This example creates a file named test.txt in the C:\Temp folder:
New-Item C:\temp -name test.txt -type file
If the file test.txt already exists this command will generate an error. However, you can force the file to be overwritten by including the -force parameter:
New-Item C:\temp -name test.txt -type file -force