Powershell split by '_' return empty

Question

So i have folder with several files:

$files = @(Get-ChildItem "myPath")

I can see via the debugger that $files contains several items and i want to take the first:

$files[0] = "123_this.is.string"

And i want to split in by '_' and take 123

$splitted = $files[0] -split "_"

So here i can see that $splitted is empty.

Any suggestions why this strange behavior ?

this works fine for me, please provide a minimal verifiable example — 4c74356b41
– 4c74356b41, Commented Dec 15, 2016 at 11:41
I believe, you should use Name property value to split. Your $file[0] should contain an object with a bunch of properties, and you can't split objects. Try $files[0].Name -Split '_'. — n01d
– n01d, Commented Dec 15, 2016 at 11:53
$files[0] -split "_" and $files[0].Name -split "_" should give the same result. — Ansgar Wiechers
– Ansgar Wiechers, Commented Dec 15, 2016 at 21:21

Boendal · Accepted Answer · 2016-12-15 12:05:18Z

$files[0] isn't a string but a FileSystemInfo Object.

$files[0].getType()

IsPublic IsSerial Name                                     BaseType                                                                                                                           
-------- -------- ----                                     --------                                                                                                                           
True     True     FileInfo                                 System.IO.FileSystemInfo

So to get it work you have to use the split function to the filename of the file which is a string.

$files[0].name.getType()

IsPublic IsSerial Name                                     BaseType                                                                                                                           
-------- -------- ----                                     --------                                                                                                                           
True     True     String                                 System.Object

With this it should work:

$files[0].name.split("_")

Avshalom · Accepted Answer · 2016-12-15 13:47:59Z

1

Try:

$files[0].ToString().split("_")

edited Dec 15, 2016 at 13:47

answered Dec 15, 2016 at 12:10

Avshalom

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