For last months I needed to maintain a number of heterogeneous servers for mi work, I need to do some usually actions, like update a config file, restart a service, create local users etc.
For this purposes there are a lot of applications, like dsh (or full csm), pysh, shmux and many others (only need to perform a search in google using phrase “distributed shell”). Unfortunately for me, I want a easy-to-parse solution, because I’ve a big (really big) number of servers, and I want a single cut-based/awk parsing, and also I need to do some actions as other users (like root, for example) via sudo. Althought many of the existants solutions offers me a subset of this features, I cannot found a complete solution. So I decided to create one 
You can find the code, and some packages in the dtools development site. I was use this solution in production environment from months with excelent results, and you can feel free to use.
Of course, its free (of freedom) software, distributed under MIT license.
Enjoy and remember: feedback are welcome 
