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sed can also perform the substitution.

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sed can also perform the substitution.

(a) True

(b) False

I have been asked this question in homework.

My question is taken from sed command topic in portion Filters using Regular Expressions of Unix

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Best answer
Right option is (a) True

The best I can explain: Substitution is one of the most important features of sed as it allows us to replace a pattern in its input with some other pattern. For this purpose, regular expressions are used for enhancing pattern matching capabilities.

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