Programmer's Revenge: The Tribulations of Running HelloWorld on z/OS

A programmer, once dismissive of operating system interaction in graduate school, found herself grappling with IBM's z/OS system years later for a blog post. z/OS, vastly different from modern software engineering environments, presented numerous challenges with its text-based interface, JCL scripts, and IBM's unique naming conventions. The article details her struggles in creating files (datasets), using the ISPF editor, allocating datasets, compiling, linking, loading, and handling output with SPOOL. It shares practical tips and lessons learned, a testament to the challenges of working with legacy systems.