Explore the limitations and potential of POSIX shell scripting in this 42-minute conference talk from linux.conf.au 2021. Delve into the evolution of UNIX and the standardization of shell languages, examining how to create more expressive programming primitives for composable and portable scripts. Discover the true power of the POSIX shell standard, identify its pain points, and understand its inherent restrictions. Learn when to opt for shell scripts and when to choose more powerful alternatives, weighing the benefits and challenges of each approach. Gain insights into crafting efficient, reusable, and portable shell scripts for diverse computing environments.