It's a UNIX system, I know this!
summary
Live coding builds a small Ruby CLI around a one-class greeter library, shows the actual bin/greet code, fixes a live bug, and demonstrates error handling, explicit stdout/stderr usage, and nonzero exit codes so shell pipes and && behave correctly. It adopts a BSD-style exit status 64 for usage errors, adds a man page for discoverability, and proves the command works end-to-end with concrete examples rather than abstract tips.
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chapters (7)
- 0:00Introduction
- 2:28Unix CLI conventions
- 6:00Error handling
- 9:15Standard output and error streams
- 11:03Exit statuses
- 14:37Man page
- 18:07Summary & Q&A
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