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____ statement is used for shifting arguments left.

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____ statement is used for shifting arguments left.

(a) set

(b) shift

(c) cut

(d) paste

I had been asked this question during an interview.

I'm obligated to ask this question of Shell Programming using Various Commands topic in portion Essential Shell Programming of Unix

1 Answer

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Best answer
Correct answer is (b) shift

Explanation: shift statement transfers the content of a positional parameter to its immediate lower numbered one. This process continues as many times as shift is invoked. For example, when called once, $2 becomes $1 and $3 becomes $2 and so on.

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