无法在Powershell脚本中使用Get-ChildItem列出文件名

Question

In the powershell command-line I can execute the following

$list = Get-ChildItem $path -name
foreach($k in $list){Write-host $k}

And it will list all the filenames in $path

But if I copy and paste the same thing in code to execute, the output is blank

Why would this even happen?

Answer 1

Write-Host will write the string directly to the Host aka. the command line window, nowhere else

Just replace Write-Host with Write-Output if you want $k written to STDOUT :

$list = Get-ChildItem $path -name
foreach($k in $list){Write-Output $k}

But in reality, that is unnecessary, Write-Output is called implicitly. You could achieve the same thing with just:

Get-ChildItem $path -Name

Answer 2

I wanted just a list of files sorted by size without directory headers. I used this to accomplish it.

get-childitem foldername -file -recurse | select FullName,Length | sort Length -descending | export-csv c:\\export.csv