Python! Because: - Cross platform, preinstalled on OSX and most Linux distros - Awesome string processing and tons of libraries, good performance - Good ecos

Python! Because: - Cross platform, preinstalled on OSX and most Linux distros - Awesome string processing and tons of libraries, good performance - Good ecosystem, fairly modern and stable language with all the stuff you may want - Wide variety of classes and utilities that comes with the standard lib. You may even use the standard library class, cmd to implement your cli I'm the author of a CLI called cloudmonkey (http://pypi.python.org/pypi/cloudmonkey http://pypi.python.org/pypi/cloudmonkey). It's an autocompleting interactive shell, CLI and command line tool that has features like; - Autocompletion and interactive shell - Also be used as a command line tool - Auth using api and secret keys - Pygment processed coloured output - Tabular output, like mysql (instead of select * you use filter=) - Pipes, shell input/output within shell - Just 500 lines of core code, uses meta programming to support over 300 APIs of CloudStack, includes an api discovery feature (think git pull) - If you want to read more: http://rohityadav.in/logs/cloudmonkey/ http://rohityadav.in/logs/cloudmonkey/