read multiple lines from text file and added it to registry - powershell

Question

Very very new to PowerShell
First off all I'd like to give the scenario what I'm trying to do.
We have a SharePoint site and users can add their OneNote books to this SharePoint site. The URL's to the SharePoint site is now changing. So I'm exporting the registry entries to a text file, change the part of the path to the new one, and add the new URL's to the registry.
The problem I'm having is when I export the URL's (because of the way I'm exporting for sure) the text file has a string called "Value" and the URL's are under it.
So the first question is how do I write the values to a text file where only the values get written (in this case the URL's)
And second question is how do I write these changed values back to the registry?
Every URL is a new "string" and the names start with 1, 2, 3 and so on.
Thank you everyone for their time in advance.
# Create a new folder if not exist file
$Folder = "C:\backup"
if(-not(Test-Path $Folder)){
New-Item -Path $Folder -ItemType Directory
}
# Start Logging
Start-Transcript -Path "C:\backup\onenote.log"
#Set Variables
$OneNoteBooks = "C:\backup\onenotenotebooks.txt"
$NewPath = '//newpath.com/'
# Delete the existing file if exists
If (Test-Path $OneNoteBooks){Remove-Item $OneNoteBooks}
# Create a new text file
New-Item -Path $OneNoteBooks -ItemType File
# Exporting OneNote SharePoint Notebooks and Correcting them to the new URL
Write-Host "Exporting OneNote SharePoint Notebooks and Correcting them to the new URL"
Push-Location
Set-Location 'HKCU:\Software\Microsoft\Office\14.0\Onenote\opennotebooks'
Get-Item . | Select-Object -ExpandProperty Property | ForEach-Object {
New-Object PSobject -Property #{"property"=$_;
"Value" = (Get-ItemProperty -Path . -Name $_).$_}} | Format-Table Value -AutoSize | Out-File $OneNoteBooks
Pop-Location
$ReplaceURL = Get-Content -Path $OneNoteBooks
ForEach-Object{
$ReplaceURL -replace "`//.*?(`/)", $NewPath | Out-File $OneNoteBooks
}
# Add Changed URL's to the registry
ForEach-Object {
New-ItemProperty -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion -Name PowerShellPath -PropertyType String -Value $PSHome
# Stop Logging
Stop-Transcript

Answer 1

Where to start? How about with the fact that in your ForEach loop you create an object with two properties, and then use Format-Table (alias FT used), and select one of the two properties making the whole object pointless... instead just get and output the value that you want.
Get-Item . | Select-Object -ExpandProperty Property | ForEach-Object {Get-ItemProperty -Path . -Name $_).$_} | Out-File $OneNoteBooks
Or better yet, use the built in functions of the Item from your Get-Item to get and set your values in a ForEach loop. Try this out...
# Create a new folder if not exist file
$Folder = "C:\backup"
if(-not(Test-Path $Folder)){
New-Item -Path $Folder -ItemType Directory
}
# Start Logging
Start-Transcript -Path "C:\backup\onenote.log"
#Set Variables
$OneNoteBooks = "C:\backup\onenotenotebooks.txt"
$NewPath = '//newpath.com/'
$OldPath = '//oldpath.com/'
$SitesChangingMask = "$([regex]::escape("$oldpath"))(nibremv|finance|sites/procurement|Comm|Departments/NITAS|ro|nitd|cnibr|communities/sig)/?"
# Delete the existing file if exists
If (Test-Path $OneNoteBooks){Remove-Item $OneNoteBooks}
# Create a new text file
New-Item -Path $OneNoteBooks -ItemType File
# Exporting OneNote SharePoint Notebooks and Correcting them to the new URL
"Exporting OneNote SharePoint Notebooks and Correcting them to the new URL"
Push-Location
Set-Location 'HKCU:\Software\Microsoft\Office\14.0\Onenote\opennotebooks'
$OneNoteReg = Get-Item .
$OneNoteReg.Property | ForEach-Object {
$CurrentValue = $OneNoteReg.GetValue($_)
$NewValue = if($CurrentValue.ToString() -match $SitesChangingMask){$CurrentValue.ToString() -replace "$OldPath", $NewPath}else{$CurrentValue.ToString()}
Set-ItemProperty 'HKCU:\Software\Microsoft\Office\14.0\Onenote\opennotebooks' -Name $_ -Value $NewValue
[PSCustomObject][Ordered]#{
"Value Name"=$_
"Original Value"=$CurrentValue
"Updated Value"=$NewValue
}
} | FT -AutoSize | Out-File $OneNoteBooks
Pop-Location
# Stop Logging
Stop-Transcript
I also changed your RegEx pattern for your replace since the old one didn't seem right. For example, in HTTP://www.microsoft.com/powershell it would update that string to read http://www.microsoft.com//newsite.com/powershell and I don't think that was your intention.

Answer 2

When saving data to a file, skip using the Format commands. You could use a CSV file here instead:
Get-Item . | Select-Object -Exp Property | ForEach-Object {
New-Object PSCustomObject -Property #{"Property"=$_;"Value"=(Get-ItemProperty . -Name $_).$_}} |
Export-Csv $OneNoteBooks
Modify the file, then re-read it like so:
$props = Import-Csv $OneNoteBooks
Then you can access the property names and values like so:
$props.Property[0]
$props.Value[0]
..
Of course, you don't really need to go to a file to modify the values. You could do it in memory:
$props = Get-Item . | Select-Object -Exp Property | ForEach-Object {
New-Object PSCustomObject -Property #{"Property"=$_;"Value"=(Get-ItemProperty . -Name $_).$_}}
$props = $props | Foreach {$_.Value = $_.Value -replace 'pattern','replacement'}
If you would prefer to create a .reg file that you can then import try this:
"Windows Registry Editor Version 5.00`n" > c:\onenotebooks.reg
"[$($pwd.ProviderPath)]" >> c:\onenotebooks.reg
Get-Item . | Select-Object -Exp Property |
ForEach-Object { "`"$_`"=`"$((Get-ItemProperty . -Name $_).$_)`"" } >> c:\onenotebooks.reg

Answer 3

The problem is in this line of code.
"Value" = (Get-ItemProperty -Path . -Name $_).$_}} | Format-Table Value -AutoSize | Out-File $OneNoteBooks
I'd suggest removing the format-table. If its not showing you everything then try this:
"Value" = (Get-ItemProperty -Path . -Name $_).$_}} | Foreach-Object {$_.Value} | Out-File $OneNoteBooks