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    Question

    Extended globbing in bash

    allows:
    A Advanced regex inside scripts Correct Answer Incorrect Answer
    B Case conversion of variables Correct Answer Incorrect Answer
    C String slicing with substring indices Correct Answer Incorrect Answer
    D Pattern-based filename matching with operators like @(pattern) Correct Answer Incorrect Answer
    E Arithmetic evaluation Correct Answer Incorrect Answer

    Solution

    Extended globbing (enabled with shopt -s extglob) allows advanced pattern matching, e.g., ls !(*.txt) excludes .txt files.

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