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Cant use the data

Last Post 14 Feb 2008 11:35 PM by halr9000. 3 Replies.

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saungkh

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14 Feb 2008 07:06 PM
Hello All, I need some help. I am trying to create a script that will dynamically read all attached USB drives and then allow me to write a common file to each USB drive attached to the pc. I have figured out how dynamically enumerate through the drives attached to the machine but I have no way to reuse the gathered information in a loop of some sort that will enable me to write the common file to each drive name that I have collected. My code to do the dynamic enumeration is below - can anyone point me in the right direction? Get-PSDrive -PSProvider FileSystem \| select-object Name \| where {$_.Name -ne "C" -AND $_.Name -ne "D"} Thanks, SNAM

halr9000

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14 Feb 2008 07:57 PM
Try this. $drives = Get-PSDrive -PSProvider FileSystem \| select-object Name \| where {$_.Name -ne "C" -AND $_.Name -ne "D"} $drives \| foreach-object { set-location $_ # write files here using set-content or add-content }

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saungkh

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14 Feb 2008 10:07 PM
Nope no cigar - it does not seem to allow a parameter to be passed to it I get the following error Set-Location : Cannot find path 'C:\Windows\System32\@{Name=E}' because it does not exist. At C:\powershell\usbcopy.ps1:2 char:39 + $drives \| foreach-object {set-location <<<< $_}

halr9000

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14 Feb 2008 11:35 PM
My mistake, I did not look as closely to your code as I should have. Drop the Select-Object, its unnecessary and has side-effects you may not be aware of. "Get-psdrive \| ? {}" returns a PSdriveinfo object "get-psdrive \| select-object foo \| ? {}" returns a custom object with one property named Foo Only use select-object in cases such as: - you want to use its -first, -last, and other filtering parameters - you want to create a custom object which is a subset of another object Read http://bsonposh.com, he has covered this topic a lot. search his blog for 'custom object'.

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