Purpose: Regular expression is everywhere in Unix Also, we will give you some regex. Select one for a given pattern. E.g., Positive numbers greater than or equal to 10 but less than 30. E.g. 43, 45, 40, 59 are matched positive numbers A. [1-3][0-9] B. [123][1-9] C. [1-2][0-9] D. [1-3]{2} E. None of above

Purpose: Regular expression is everywhere in Unix Also, we will give you some regex. Select one for a given pattern. E.g., Positive numbers greater than or equal to 10 but less than 30. E.g. 43, 45, 40, 59 are matched positive numbers A. [1-3][0-9] B. [123][1-9] C. [1-2][0-9] D. [1-3]{2} E. None of above

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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