Glish is currently used primarily for data analysis and telescope control. It is a cornerstone of the data analysis system called AIPS++. This system uses Glish for control and communication. The compute tasks are written in C++ and connected to the interpreter via the "software bus". Glish is also the command line interface for AIPS++, and from it, users can combine computing elements to fit their needs. In addition, most simple graphical user interface (GUI) elements are implemented using a Tk addition to Glish. This addition allows users to control the GUI and the application within the same event-oriented scripting language.
Glish was originally developed for the Superconducting Super Collider (SSC) by Vern Paxson and Chris Saltmarsh at the Lawrence Berkeley Laboratory. Since 1995, Glish has been maintained and developed by Darrell Schiebel at the National Radio Astronomy Observatory (NRAO) as part of the AIPS++ project.