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The expression expr -7 % 2 evaluates to:
Answer & Explanation
Correct Answer: -1
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Which of the following is/are allowed in an arithmetic statement involving expr command?
Answer & Explanation
Correct Answer: 3-5
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The exit statement is used in a loop to:
Answer & Explanation
Correct Answer: terminate the execution of a script.
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A shell script is executed by:
Answer & Explanation
Correct Answer: an interpreter.
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Which of the following is true about the "continue" statement?
Answer & Explanation
Correct Answer: It continues the control to the beginning of the loop, bypassing the statements below it, inside the loop.
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Which of the following assignments is illegal?
Answer & Explanation
Correct Answer: c=`1972`
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The expression expr -2 % 7 evaluates to:
Answer & Explanation
Correct Answer: -2
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Which of the following loops is invalid?
Answer & Explanation
Correct Answer: while $
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Which of the following shows the correct precedence order of operators used in a shell? Operators on left side of comma have higher precedence than those on the right side of comma.
Answer & Explanation
Correct Answer: ( ) , ** , * or / , + or -
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