[mindcrime]

> Or, for good grief, REXX.

FWIW, Rexx is readily available on Linux.

    [prhodes@whiskey pdfs]$ dnf search rexx
    Last metadata expiration check: 0:29:48 ago on Sat 06 Jul 2019 10:50:28 PM EDT.
    ========================================================== Name & Summary Matched: rexx ==========================================================
    oorexx.x86_64 : Open Object Rexx
    oorexx.x86_64 : Open Object Rexx
    oorexx-libs.x86_64 : Libraries for ooRexx
    oorexx-libs.i686 : Libraries for ooRexx
    oorexx-libs.x86_64 : Libraries for ooRexx
    brexx.x86_64 : Classic Rexx Implementation
    oorexx-docs.x86_64 : Documentation for ooRexx
    oorexx-docs.x86_64 : Documentation for ooRexx
    rexx-imc.x86_64 : IMC's interpreter for the Rexx
    oorexx-devel.x86_64 : Header files and libraries for ooRexx
    oorexx-devel.i686 : Header files and libraries for ooRexx
    oorexx-devel.x86_64 : Header files and libraries for ooRexx

[mindcrime]

Addendum:

NetRexx is also open source and readily available, which is one more option for any Rexx junkies out there.

http://netrexx.org

[wglb]

Thanks for the heads up, but my ill-disguised snark was not about the availability, but rather the suitability.