Use PowerShell to filter by or count when files were created.

Scenario:  You suspect that logs are not being generated properly and you want to find the logs or count the logs based on any log created after a specific date.

#View the file information for the logs:
Get-ChildItem "\Ex2013Server1C$Program FilesMicrosoftExchange ServerV15LoggingHttpProxyEas" | Where-Object { $_.CreationTime -gt [datetime]"2016/05/17" } | Sort-Object CreationTime | Format-Table Name, CreationTime

#Count the Logs
(Get-ChildItem "\Ex2013Server1C$Program FilesMicrosoftExchange ServerV15LoggingHttpProxyEas" | Where-Object { $_.CreationTime -gt [datetime]"2016/05/17" } | Sort-Object CreationTime | Format-Table Name, CreationTime).count