The klish is a framework for implementing a CISCO-like CLI on a UNIX systems. It is configurable by XML files. The KLISH stands for Kommand Line Interface Shell. I know that "command" starts with "c" :) .
The klish is a fork of clish 0.7.3 project (http://sourceforge.net/projects/clish/). The original clish was developed by Graeme McKerrell. The klish obtain some new features but it's compatible (as much as possible) with clish's XML configuration files. The author of klish project is Serj Kalichev.
The main target for the klish is a Linux platform. Additionally it can be build on FreeBSD, OpenBSD, Solaris, QNX. The klish project is written in C.
The klish development is sponsored by "Factor-TS" company http://www.factor-ts.ru/.
The main klish GIT repository is https://src.libcode.org/klish