January 8, 2009 10:57pm pst

10.14.2008 at 02:08AM PDT, ID: 23812063

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How do I run a windows command in powershell with parameters that include hyphens - having problems, specifically with WBADMIN

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8.6

Zones:

MSH/Monad PowerShell, Microsoft Operating Systems, Windows Server 2008

Tags:

Microsoft, Windows Server, 2008, WBADMIN

I'm trying to run WBADMIN via a PS script. I'm generating the commandline with variables. The script is designed to perform a backup (obviously as a scheduled task every night) to a different location which is created depending on the date and time that the script is called. Code below.

When I run this as a script "powershell -command .\backup.ps1" I get the following error from WBADMIN:

"ERROR - The value for option: backuptarget is missing. See usage below."

The problem I'm having is that the parameters for WBADMIN require "-" which it seems to me is throwing the call to WBADMIN from powershell.

I've tried a lot of things to ascerrtain what exactly is causing the problem. I'm certain it's the hyphens (obviously because they form a vital part of PS syntax). Is there a built in way around this or can anybody recommeny anything or is it something really stupid I'm doing wrong.

Thanks.
Tom.

         
           
           
             $date=$(Get-Date f o)
$date=$date.SubString(0,$date.IndexOf("."))
$date=$date -replace "/", "-"
$date=$date -replace "T", " "
$date=$date -replace ":", "."
$destpath = "Full Backup On $date"
$storagepath=new-item -path \\nas\backups -name $destpath -type directory
$commandline="wbadmin.exe"
$params="start backup -backuptarget:""$storagepath"" -include:C:,D: -VSSFull"
$exec = "$commandline $params"
invoke-expression $exec

           
         

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Answered By:	xfreddie
Expert Since:	09/09/2005
Accepted Solutions:	34
Computer Expertise:	Intermediate

xfreddie has been an Expert for 3 years 4 months, during which he has posted 132 comments and answered 34 questions. xfreddie is just one of 49 experts in the MSH/Monad PowerShell Zone. 2 experts collaborated on this answer, which was graded an "A" by the asker.

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