The word REXX is a programming language that originated in IBM's System/370 mainframe operating system. It is spelled with four letters - R, E, X, and X, and is pronounced as /rɛks/ or "reks" in IPA phonetic transcription. The two "X" letters in REXX are not pronounced separately but rather make a "ks" sound. This programming language is known for its simplicity, interpretive nature, and extensive string handling capabilities. REXX has been widely adapted to various operating systems, including Windows, Linux, and macOS.
REXX, short for Restructured Extended Executor, is a high-level programming language that primarily caters to script-based applications. It was created by Mike Cowlishaw in the late 1970s as an evolution of an earlier language called EXEC.
REXX is known for its simplicity and ease of use, making it an efficient choice for both beginners and experienced programmers. It provides a platform-independent environment, allowing programs written in REXX to be executed on a wide range of computer systems and operating systems.
The language is particularly popular among mainframe users due to its ability to interact with system services, such as file handling, program execution, and data manipulation. REXX's syntax is designed to be human-readable and straightforward, utilizing English-like keywords and understandable control structures.
REXX supports both procedural and object-oriented programming paradigms, providing programmers with flexibility in designing their applications. It boasts powerful string manipulation capabilities, making it ideal for handling text-oriented tasks. Additionally, REXX facilitates system integration by supporting interfaces with other programming languages, such as C and Java.
Overall, REXX is a versatile programming language that enables the creation of automation scripts, general-purpose programs, and even complex applications. Its simplicity, portability, and extensive functionality make it a valuable tool for a wide range of programming tasks in various domains, including system administration, data processing, and software development.