Why does
gci $from -Recurse | copy-item -Destination $to -Recurse -Force -Container
not behave in the same way as
copy-item $from $to -Recurse -Force
?
I think it should be the same, but somehow it's not. Why?
You are not looping over each item in the collection of files/folders, but passing the last value to the pipe. You need to use Foreach-item or % to the Copy-Item command. From there, you also do not need the second -recurse switch as you already have every item in the GCI.
try this:
gci $from -Recurse | % {copy-item -Path $_ -Destination $to -Force -Container }