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Which option is used for sorting a file according to primary key?

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Which option is used for sorting a file according to primary key?

(a) -t

(b) -k

(c) -n

(d) -n

The question was asked in an online quiz.

I would like to ask this question from Sort Command topic in portion Simple Filters of Unix

1 Answer

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Correct choice is (b) -k

Explanation: sort command provides an option for sorting file according to our specified field. For this purpose, we have to use -k along with the field number (based on which we want to perform sorting). For example, to perform sorting on second field (name):

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