Microsoft Windows PowerShell 3.0 Firstlook by A. Driscoll

Author:A. Driscoll [Driscoll, A.]
Language: eng
Format: epub
Tags: Computers, Programming, General, Windows Administration, Windows Server & NT, Operating Systems, System Administration, Internet, Microsoft Programming
ISBN: 9781849686440
Publisher: Packt Publishing
Published: 2012-10-03T00:00:00+00:00

The following workflow iterates over the lines within the text file and outputs them in parallel:

PS C:\> workflow Get-User { $lines = Get-Content –FilePath C:\UserNames.txt foreach —parallel ($line in $lines) { if ($line —match “mdnvdi”) { “User: $line” } } } PS C:\> Get-User

Running the workflow will yield different results depending on the size of the file, but in theory, any line could be output because the loop is executing in parallel. Parallel execution is very powerful but must be used with caution and in the right circumstances. Workflows makes it very easy to create parallel activities.

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