Log Parser Powershell - todays date in the file name

Hi,

I'm trying to use the log parser PowerShell template to look in a text file for a string.

I can get it to work on a file like the below.

logfile.log

but I cant work out how to add todays date into the script argument? As the system that creates the log file adds the date so every day its a new log file.

todays date is 17/10/2016

logfile2016-10-17.log

feel like it should be something like

c:\logfile$get-date format- yyyy-mm-dd.log, error502