What is NOT a purpose of using parentheses around parts of a regular expression?

January 24, 2024No Comments

DWQA Questions › Category: Introduction to Linux I › What is NOT a purpose of using parentheses around parts of a regular expression?

What is NOT a purpose of using parentheses around parts of a regular expression?

They can be used to change the order that the pattern is evaluating
They can be used to refer back to what was matched
They can be used to make alternation more efficient
They can be used to group characters for repetition

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