Update Attachment in Richtext Fields in SharePoint

‪#‎
Add‬ SharePoint PowerShell Snapin which adds SharePoint specific cmdlets

Add - PSSnapin Microsoft.SharePoint.PowerShell - EA SilentlyContinue

‪#‎ Variables‬ that we are going to use
for list editing
$webURL = "someurl/"
$listName = "Demo List"

‪#‎
Get‬ the SPWeb object and save it to a variable
$web = Get - SPWeb $webURL

# Get the SPList object to retrieve the "Demo List"
$list = $web.Lists[$listName]

# Get all items in this list and save them to a variable
$items = $list.items

‪#‎ Go‬ through all items
foreach($item in $items) {‪#‎
    If‬ the "Title"
    column value equals "My first item!"
    do something with it
    if ($item["Title"] - eq "test1") {‪#‎
        Change‬ the value of the "Title"
        column
        $item["Remarks"] = "My first edited item! test1"

        ‪#‎
        Update‬ the item
        $item.Update()
    }
}