Rexx

Rexx (restructured extended executor) is a high-level programming language developed at IBM by Mike Cowlishaw. Both proprietary and open source Rexx interpreters exist for a wide range of computing platforms, and compilers exist for IBM mainframe computers. Rexx is used for scripting, application macros and application development. As a general purpose scripting language, Rexx is considered a precursor to Tcl and Python.

ARexx is a Rexx interpreter for Amiga, written in 1987 by William S. Hawes, with a number of Amiga-specific features beyond standard Rexx. An ARexx script can communicate with software that implements an ARexx port. An Amiga application can define a set of commands and functions for ARexx to address, thus making the capabilities of the software available to an ARexx script. Several applications support running an ARexx script as a macro.

object-oriented scripting language for the operating system OS/2

British computer scientist

computer worm

CygnusEd is a text editor for the AmigaOS and MorphOS. It was first developed in 1986-1987 by Bruce Dawson, Colin Fox and Steve LaRocque who were working for CygnusSoft Software. It was the first Amiga text editor with an undo/redo feature and one of the first Amiga programs that had an AREXX scripting port by which it was possible to integrate the editor with AREXX enabled C compilers and build a semi-integrated development environment. Many Amiga programmers grew up with CygnusEd and a considerable part of the Amiga software library was created with CygnusEd.

thumb|right|An Informatics General computer programmer using XEDIT on an IBM 3279 terminal thumb|An early version of XEDIT from 1982, as displayed on a 3270 terminal emulator. XEDIT is a visual editor for VM/CMS, primarily using block mode IBM 3270 terminals. It also works on line-mode terminals.