I primarily program in Java and C# but use dynamic languages (ruby/perl) to support smoother deployment, kicking off OS tasks, automated reporting, some log parsing, etc.
After a short time learning and experimenting with ruby or perl you should be able to write some regex manipulating scripts that can alter data formats or grab information from logs. An example of a small ruby/perl script that could be written quickly would be a script to parse a very large log file and report out only a few events of interest in either a human readable format or a csv format.
Also, having experience with a variety of different programming languages should help you think of new ways to tackle problems in more structured languages like Java, C++, and C#.
