Using Lua Coroutines for Lightweight Cooperative Concurrency
Learn how Lua coroutines give you cheap, cooperative concurrency for scripting tasks, with a producer‑consumer example and memory‑usage verification steps.
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luaSimplifying Text Extraction with Rexx PARSE
Stop fighting with inconsistent regex engines. Learn how Rexx's PARSE instruction uses simple templates to extract text fields consistently across Linux, Windows, and mainframes.
rexxUsing Lua Coroutines for Cooperative Multitasking
Learn how Lua coroutines enable lightweight cooperative multitasking, see a simple number‑generator example, understand status checks, and avoid common mistakes like resuming dead coroutines or stack overflow.
Bash Associative Arrays: Speedy, Readable Key‑Value Handling
Traditional shell scripts often use grep or awk to simulate maps, but Bash 4+ offers native associative arrays. This guide shows syntax, a word‑frequency example, trade‑offs, and how to check your Bash version.
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