REXX Interview Questions and Answers
REXX (Restructured Extended Executor) is a programming language which was developed at IBM, and several implementations are available under open source licenses. It is a structured high-level programming language which was designed to be both easy to learn and easy to read. Both commercial and open source Interpreters for REXX are available on a wide range of computing platforms, and compilers are available for IBM mainframes.
REXX Interviews are getting tough these days as the technology grows faster. To get through the REXX interview one needs to update him/herself in a regular manner. Having said that, just before the interview, it is very important to have a quick glance of the reputed REXX questions and answers to make yourself comfortable during the interview process. This is where DoAnswers.com helps you in renewing yourself on REXX and various other technologies interview preparation.
21. What is uni-REXX?
uni-REXX is a UNIX implementation of IBM's popular Rexx programming language as defined by M. F. Cowlishaw in The Rexx Language, A Practical Approach to Programming (Prentice-Hall, 2nd. Edition, 1990), and by the ANSI Standard Sj18.
22. What would I use uni-REXX for?
uni-REXX can be used for a wide variety of purposes. The most popular include automating system administration tasks development of end-user applications rapid prototyping of compiled-language applications uni-REXX can also be embedded as a scripting language or system-control language in other applications.
23. When will a port of ooRexx to "XYZ" be available?
Any POSIX-based, Un*x-like platform is likely to already be available in the source distribution due to the use of the autoconf toolset. If not, then support for the particular platform will need to be implemented in a future version of ooRexx.
24. Where can I download ooRexx for my operating system?
You can get ooRexx by clicking or your platform and desired version via the Downloads Page or by choosing from the SourceForge Downloads Page which may be a little bit harder to navigate.
25. which accompanies this distribution.
http://www.oorexx.org/license.html Due to licensing issues related to components of Object REXX, not all portions of the developer edition were made available to RexxLA. Therefore the following components are not available in ooRexx: IBM Resource Workshop - This component allowed the user to create Windows-based dialogs for use by the OODialog component. Existing OODialog programs will still work with ooRexx, as the source to the runtime component of OODialog has been made available. Object REXX Workbench - This component is the Object REXX IDE which allowed the user to write and debug Object REXX programs in an IDE. rxftp function package - This component provided external functions to allow FTP sessions to be programatically controlled. ooRexx supplies a full (and more powerful) replacement in the form of the easy to use rxFtp class which is fully documented in the rxftp.pdf document or as an HTML document.
26. Why is there no OS/2 (eCS) port of ooRexx?
The source code provided to RexxLA was maintained by one group of IBM developers. The source code for OS/2 is maintained by a different group of IBM developers, and that source code base was not supplied to RexxLA. One of the future tasks for this project is to port the Open Source code for ooRexx to OS/2.
27. Why would I prefer uni-REXX to the various UNIX shell languages?
There are many reasons, and the answer depends on your individual needs. If you can answer yes to any of the questions below, then you need uni-REXX:
28. Would I ever want to uninstall ooRexx?
Only if you are upgrading to a newer version.
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