PowerShell外文件操作

Question

i hope someone can help. I am trying to manipulate a file created by powershell. I managed to get to the end result that i want, but i am sure it would be easier if it was only one command.

# Invoke the Exchange Snapping ( make sure you are Exchange Admin to do it SO)
add-pssnapin Microsoft.Exchange.Management.PowerShell.E2010

#Create a file with list of DL in the organization
Get-DistributionGroup | Select-Object Name | Out-File C:\Pre_DLGroups.txt
$content = Get-Content C:\Pre_DLGroups.txt

#Remove the 3 first lines of the file that you dont need it
$content | Select-Object -Skip 3 | Out-file C:\DLGroups.txt

#Trim the space in the end and crate the Final file
Get-Content C:\DLGroups.txt | Foreach {$_.TrimEnd()} | Set-Content c:\FinalDLGroup.txt

is that way to make the end result in a single file rather than creating 3? cheers

Elton

Answer 1

You can send your content across the pipeline without writing it out to files. You can use parenthesis to group the output of certain sets of cmdlets and/or functions, and then pipe that output through to the intended cmdlets.

This can all be applied on a single line, but I've written it here on multiple lines for formatting reasons. The addition of Out-String is something of a safety measure to ensure that whatever output you're intending to trim can actually be trimmed.

Since we're not getting this content from a text file anymore, powershell could possibly return an object that doesn't understand TrimEnd() , so we need to be ready for that.

(Get-DistributionGroup | Select-Object Name) | 
Out-String | 
Select-Object -Skip 3 |
Foreach {$_.TrimEnd()} | 
Set-Content c:\FinalDLGroup.txt

However, an even smaller solution would involve just pulling each name and manipulating it directly. I'm using % here as an alias for Foreach-Object . This example uses Get-ChildItem , where I have some files named test in my current directory:

(Get-ChildItem test*) | 
% { $_.Name.TrimEnd() } | 
Set-Content c:\output.txt

Answer 2

Get-DistributionGroup | 
Select-Object -ExpandProperty Name -Skip 3 |
Set-Content c:\FinalDLGroup.txt