How to copy certain files (w/o folder hierarchy), but do not overwrite existing files?

Question

I need to copy all *.doc files (but not folders whose names match *.doc) from a network folder \\\\server\\source (including files in

Answer 1

# Get all *.doc files under \\server\source
Get-ChildItem -Path \\server\source *.doc -Recurse |
    # Filter out directores
    Where-Object { -not $_.PsIsContainer } | 
    # Add property for destination
    Add-Member ScriptProperty -Name Destination -Value { Join-Path 'C:\destination' $this.Name } -PassThru |
    # Filter out files that exist on the destination
    Where-Object { -not (Test-Path -Path $_.Destination -PathType Leaf } | 
    # Copy. 
    Copy-Item