Chris Wellons • 12/23/2025

Unix "find" expressions compiled to bytecode

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This technical article details a method for compiling the Unix 'find' utility's expression language into bytecode to improve performance by minimizing per-file work. It explains the syntax and logic of find expressions, compares the approach to existing tree-walk interpreters in GNU, BSD, and BusyBox, and includes runnable examples and ideas for future improvements.

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#compiler #unix #file system
Unix "find" expressions compiled to bytecode

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