Run the script, Initialize-PacktPs6CoreLinuxLab.ps1 from within the ch05 directory of the book's GitHub repository. This is just so we have some files to work on. Next, run the script, Set-LastWriteTime.ps1 from within the ch09 directory of the repository.
If you would like to specify a path other than ~/random for the content, add -Path '//your/custom/path' to the last line of the script. Ensure you do this in both the scripts.