For those note aware of the GNU Tail utility, it will print the last n lines of text from a file. It is an invaluable tool for monitoring log files.

Since Windows does not have an equivalent command this is quite useful. Using the Powershell Get-Content cmdlet will print the contents of a file. The -wait parameter will print additional lines as they are added.

Get-Content filename -wait

Be aware that this is slow on large files.