Set-XMLAttribute.ps1

1. <# 
2. .SYNOPSIS 
3.     This script adds an attribute to an XML node 
4. .DESCRIPTION 
5.     This script creates a simple XML document and sets an attribute 
6.     on a node. The script displays the before and after results, and 
7.     is a conversion and extension of the MSDN sample.  
8. .NOTES 
9.     File Name  : Set-XMLAttribute.ps1 
10.     Author     : Thomas Lee - tfl@psp.co.uk 
11.     Requires   : PowerShell Version 2.0 
12. .LINK 
13.     This script posted to: http://www.pshscripts.blogspot.com 
14.     MSDN Sample posted at: http://msdn.microsoft.com/en-us/library/y1ah1zbw.aspx  
15. .EXAMPLE 
16.     PSH [C:\foo]: .\Set-XMLAttribute.ps1 
17.     Display the Starting XML... 
18.     <book xmlns:bk="urn:samples" bk:ISBN="1-861001-57-5"><title>Pride And Prejudice</title></book> 
19.     Display the modified XML... 
20.     <book xmlns:bk="urn:samples" bk:ISBN="1-861001-57-5" genre="novel"><title>Pride And Prejudice</title></book> 
21. #> 
22.  
23. # Create the XML document and populate 
24.   
25. $Doc = New-Object System.XML.XmlDocument 
26. $Doc.LoadXml("<book xmlns:bk='urn:samples' bk:ISBN='1-861001-57-5'>" + 
27. "<title>Pride And Prejudice</title>" + 
28. "</book>") 
29. $Root = $doc.DocumentElement 
30.   
31. # Display the XML 
32. "Display the Starting XML..." 
33. $doc.InnerXml 
34.   
35. # Add an attribute and display results 
36. $root.SetAttribute("genre", "novel") 
37. "Display the modified XML..." 
38. $doc.InnerXmL 

Technorati Tags: PowerShell,script,System.XML.XMLDocument,SetAttribute,code,msdn

Get-XMLAttribute.ps1

1. <# 
2. .SYNOPSIS 
3.     This script retrieves an attribute from an XML Element  
4. .DESCRIPTION 
5.     This script first creates an in-memory XML document, then used the  
6.     HasAttribute and GetAttribute to retrieve an attribute. 
7. .NOTES 
8.     File Name  : Get-XMLAttribute.ps1 
9.     Author     : Thomas Lee - tfl@psp.co.uk 
10.     Requires   : PowerShell Version 2.0 
11. .LINK 
12.     This script posted to: 
13.         http://pshscripts.blogspot.com/2010/06/get-xmlattributeps1.html 
14.     MSDN Sample posted at: 
15.         http://msdn.microsoft.com/en-us/library/efsc3w6k.aspx
16. .EXAMPLE 
17.     PSH [C:\foo]: .\Get-XMLAttribute.ps1 
18.     Elemnt has genre: novel 
19. #> 
20. # Create XML document in memory 
21. $doc = new-object System.Xml.XmlDocument 
22. $doc.LoadXml("<book genre='novel' ISBN='1-861001-57-5'>" + 
23.                 "<title>Pride And Prejudice</title>" + 
24.                 "</book>"); 
25. # Set root 
26. $root = $doc.DocumentElement; 
27.  
28. # Check to see if the element has a genre attribute 
29. # Then display it 
30. if ($root.HasAttribute("genre")){ 
31.       $genre = $root.GetAttribute("genre"); 
32.       "Elemnt has genre: {0}" -f $genre 
33.    } 

Technorati Tags: XML,PowerShell,Script,System.XML.XMLDocument

Get-XMLFileContents.ps1

1. <# 
2. .SYNOPSIS 
3.     This script reads a simple XML file and prints the results 
4. .DESCRIPTION 
5.     This script is a re-write of an XML C# MSDN Sample. 
6. .NOTES 
7.     File Name  : get-xmlfilecontents.ps1 
8.     Author     : Thomas Lee - tfl@psp.co.uk 
9.     Requires   : PowerShell V2 CTP3 
10.     Books3.xml =  
11.       <book> 
12.       <title>C# Introduction</title> 
13.       <price>20</price> 
14.       </book> 
15. .LINK 
16.     This script posted to: 
17.         http://www.pshscripts.blogspot.com 
18.     MSDN Sample posted at: 
19.         http://msdn.microsoft.com/en-us/library/t9bfea29.aspx 
20. .EXAMPLE 
21.     PSH [C:\foo]: .\Get-XMLFileContents.PS1 
22.     The content of the title element: C# Introduction 
23.     The content of the price element: 20 
24.   
25. #> 
26.   
27. ## 
28. # Start of Script 
29. ## 
30.   
31. # Create XML Reader 
32. $reader = [system.Xml.XmlReader]::Create("C:\foo\book3.xml") 
33.   
34. # Parse the XML document.  ReadString is used to  
35. # read the text content of the elements. 
36. $result=$reader.Read() 
37.   
38. # Read/Display title 
39. $reader.ReadStartElement("book") 
40. $reader.ReadStartElement("title")    
41. "The content of the title element: {0}" -f $reader.ReadString() 
42. $reader.ReadEndElement() 
43.   
44. # Read and display price 
45. $reader.ReadStartElement("price") 
46. "The content of the price element: {0}" -f $reader.ReadString() 
47. $reader.ReadEndElement() 
48. $reader.ReadEndElement() 
49. # End of Script 

Technorati Tags: XML,System.XML.XMLReader,PowerShell,code,script

Write-RSSStream.ps1

# Write-RSSStream.ps1
# This sample shows how to use the XMLTextWriter
# Based on Halr's content, but extended.
# Thomas Lee - tfl@psp.co.uk

# Define output
$path = "c:\foo\file.xml"

# Create encoding, and create xml writer

$encoding = [System.Text.Encoding]::UTF8
$writer = New-Object System.Xml.XmlTextWriter( $Path, $encoding )
$writer.Formatting = [system.xml.formatting]::indented

# Write start of document
$writer.WriteStartDocument()

# Write Start of rss stream
$writer.WriteStartElement( "rss" )
$writer.WriteAttributeString( "version", "2.0" )

# write channel start info
$writer.WriteStartElement("channel")
$writer.WriteStartElement("title")
$writer.writestring("My Channel")
$writer.WriteEndElement() #end title
$Writer.WriteStartElement("Last Build Date")
$writer.WriteString((Get-Date).ToString())
$writer.WriteEndElement() #end last build date
$writer.WriteStartElement("subtitle")
$writer.WriteString("This Blog's subtitle")
$writer.WriteEndElement() #end subtitle

# Now here put an item in
$writer.WriteStartElement("item")
$writer.WriteStartElement("title")
$writer.WriteString("A cool RSS Feed Item")
$writer.WriteEndElement() #end title
$writer.WriteStartElement("link")
$writer.WriteString("http://pshscripts.blogspot.com")
$writer.WriteEndElement() #end link
$writer.WriteStartElement("description")
$writer.WriteString("This is the body of a blog post. It could go on, and on. ")
$writer.Writestring("Or not as the case may be!")
$writer.WriteEndElement() #end description
$writer.WriteStartElement("author")
$writer.WriteString("Thomas Lee - tfl@psp.co.uk")
$writer.WriteEndElement() #end author
$writer.WriteEndElement() #end item

# Write end of document information
$writer.WriteEndElement() # End Channel
$writer.WriteEndElement() #End RSS

# Make sure we close the file
$writer.close()

# Let's see what it has done
cat $path

This script produces the following output:

PS C:\foo> . 'C:\foo\write-rssstream.PS1'
<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
 <channel>
   <title>My Channel</title>
   <Last Build Date>12/5/2008 8:50:26 AM</Last Build Date>
   <subtitle>This Blog's subtitle</subtitle>
    <item>
     <title>A cool RSS Feed Item</title>
     <link>http://pshscripts.blogspot.com</link>
      <description>This is the body of a blog post. It could go on, and on.
                  Or not as the case may be!</description>
     <author>Thomas Lee - tfl@psp.co.uk</author>
   </item>
 </channel>
</rss>