More Software Engineering Radio episodes
Published 7 Jan 2026
Duration: 48:05
This podcast analyzes the evolution and design of modern Command Line Interfaces (CLIs), covering their history, philosophies, and applications in automation and concurrency.
Derick Schaefer, author of CLI: A Practical Guide to Creating Modern Command-Line Interfaces, talks with host Robert Blumen about command-line interfa...
The podcast explores the development and modernization of Command Line Interfaces (CLIs), tracing their origins from early teletype systems to their current relevance in software development. It examines key aspects that define a modern CLI, such as design philosophies inspired by the UNIX command model, object-based command structures, and integration with development tools. The discussion emphasizes the practical applications of CLIs in automation, data processing, and workflow management, while also addressing technical challenges like handling long-running tasks, memory optimization, and concurrency in languages such as Go and Rust.
The podcast also covers topics like CLI output formatting for both human and machine consumption, with a focus on the importance of JSON for interoperability. It introduces tools like Cobra and Pflag which aid in CLI development. Additional subjects include CLI security, authentication practices, documentation, and the potential of integrating AI with CLI tools. The conversation contrasts CLIs with web interfaces, highlighting the unique use cases for each, and underscores the importance of designing CLIs that are both user-friendly and technically robust.
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