Update All Items in a SharePoint List using PowerShell
Use these PowerShell scripts to update all items in SharePoint lists:
SharePoint PowerShell script to update all items in a list:
Requirement is to update all items in a SharePoint list using PowerShell script:
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
### Variables ###
#Site URL and List names
$SiteURL = "http://intranet.crescent.com/"
$ListName = "Business Contacts"
#Get site and List objects
$web = Get-SPWeb $SiteURL
$List = $web.Lists.TryGetList($ListName)
if($List -ne $null)
{
#Get all List items
$ListItems = $list.Items
#Iterate through each item
Foreach($item in $ListItems)
{
#To update a particular field,
$item[$FieldName]= NewValue;
#sharepoint powershell update all items in list
$item.update()
}
}
#dispose web object
$web.Dispose()
Filter and Update all documents in a SharePoint Library:
Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue
### Variables ###
#Site URL and List names
$SiteURL = "http://intranet.crescent.com/Sites/Sales"
$ListName = "Sales Proposals"
#Column to update
$FieldName ="Sales Category"
#Field old and new values
$OldValue = "Software"
$NewValue="Applications"
#Get site and List objects
$web = Get-SPWeb $SiteURL
$List = $web.Lists.TryGetList($ListName)
if($List -ne $null)
{
#Get all documents with .docx extension
$DocsCollection = $List.Items | where {$_.Name -match ".docx"}
#Iterate through each document
foreach ($Doc in $DocsCollection)
{
#Change Category Metadata
if($Doc[$FieldName] -eq $OldValue)
{
$Doc[$FieldName] = $NewValue
#Perform a system update to keep versions, Modified by metadata intact
$Doc.SystemUpdate($false)
write-host "Updated an item at: $($doc.URL)"
}
}
}
#dispose web object
$web.Dispose()
This PowerShell script selectively updates all document’s metadata, residing in a library – Including the one inside folders.
Here is an another trick to trigger update on multiple documents in SharePoint:
- Navigate to your document library
- Select required documents >> Click on “Check Out” button from ribbon
- Click on “Check-in”
