Monitor LSNs from MySQL and MySQL Variants

Basic script based on Baron Schwartz's blog post in 2008: http://www.mysqlperformanceblog.com/2008/11/21/how-to-calculate-a-good-innodb-log-file-size/

The idea is to monitor the LSN of a server over a period of time. The output is a simple calculation of the number of megabytes per minute.

You can provide an interval (in seconds) and the calculation with estimate the amount of MB per minute.