Replace value in html table Powershell - html

Question

I'm writing a script which displays the last 7 backups of my server. The scripts outputs the following: TimeCreated, Level, ID, Message,Size in a html table.
my script:
$lastsevendays = (get-date) - (new-timespan -day 7)
$MyObject = Get-WinEvent -FilterHashTable #{LogName='Microsoft-Windows-Backup'; StartTime=$lastsevendays}
$BackupSize = #{ Name = "BackupSize"; Expression = { (($objFSO.GetFolder("C:\Users\LaBackup").Size) / 1MB) } }
$MyObject |
Select 'TimeCreated', 'LevelDisplayName','ID', 'Message', $BackupSize |
ConvertTo-HTML -Head $Header |
Out-file C:\Users\script.htm
I want the script to run everyday and automatically remove backups row which date back from more than 7 seven.
I think i'm supposed to select row which have "Date" less or equal than seven days ago,
and delete them to add more recent row.
I have no idea how i could do this as, ConvertTo-HTML seems to regenerate a whole table each time it's called.
Some ideas??
thanks in advance

Answer 1

Give this a try:
Get-WinEvent -LogName Microsoft-Windows-Backup | Where-Object -FilterScript { $_.TimeCreated -gt [DateTime]::Now.AddDays(-7); }
This uses the Where-Object cmdlet to filter events that are older than 7 days in the Microsoft-Windows-Backup log.
EDIT
I guess I misunderstood what you were looking for. All I did was change the -lt operator to -gt.