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Unix Shell Script MCQs

Suppose you are writing a shell script that accepts five positional parameters from the terminal. What will be the effect of using statement "shift 1" in your shell script and then executing the shell script?

The positional parameters would be shifted by one position towards left i.e. parameter 1 will have value of parameter 2, parameter 2 will have value of parameter 3 and so on.

Only the first positional parameter would be shifted to left position.

All of the positional parameters would be shifted by one position towards right i.e. parameter 2 will have value of parameter 3, parameter 3 will have value of parameter 4 and so on.

It would result in an error.

Answer

Correct Answer:

The positional parameters would be shifted by one position towards left i.e. parameter 1 will have value of parameter 2, parameter 2 will have value of parameter 3 and so on.

Explanation:

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