Using Regular Expressions with Linux Tools

Описание: Regular expressions (regexes) provide a way to identify strings that match a specified pattern. They are extremely useful for preprocessing text and extracting results from high-performance computing and data science workloads. Primarily in the Linux grep utility context, we introduce the main features of regexes incrementally: string literals, specifying multiple characters, quantifiers, wildcards, anchors, character classes, grouping, and alternation. We also explore more advanced topics, such as word boundaries, lazy and greedy matching, regex flavors (basic, extended, and Perl-compatible), regexes with awk and sed, searching compressed files, and utilizing large language models (LLMs) to create regexes.

A working knowledge of grep, and optionally awk and sed, will help you make the most of this session. We recommend attending the COMPLECS Linux tools for file processing webinar or reviewing the associated materials (recording, slides, GitHub repo) if you are not familiar with these topics.

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Instructor
Robert Sinkovits, Ph.D., is a senior computational scientist at the San Diego Supercomputer Center. He is currently the co-PI and project manager for Expanse, SDSC’s nationally allocated supercomputer. He has collaborated with researchers spanning many fields, including physics, chemistry, astronomy, structural biology, ecology, finance, immunology, and the social sciences, always with an emphasis on parallel scalability and maximizing application performance. Robert previously served as Director of Education and Training and launched SDSC’s COMPLECS project, which emphasizes the skills beyond programming that are needed to make effective use of advanced cyberinfrastructure.

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Learn more about SDSC: https://www.sdsc.edu/index.html