With no prior programming experience, I once had to learn REXX on the OS/2 platform, due to a huge project I was involved with that required us to do extensive scripting on Nortel's Norstar Voice Mail platform.
Since everyone said what we needed to do was impossible (including Nortel), and I could not figure out how to find a REXX programmer, the task fell to me to figure it out.
With Mike Cowlishaw's book in hand, I fell in love with REXX in a matter of hours, and over the next few years lovingly crafted tens of thousands of lines of REXX code.
Today, the only two centrally-managed Norstar installations in the world (both networks over 1000 nodes, serving 20,000 users) are capable of feats that Nortel has yet to match in their bleeding-edge products.
All thanks to REXX!
Jim Van Meggelen