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Which of the following operators is used with test for comparison of numeric values?

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Which of the following operators is used with test for comparison of numeric values?

(a) -eq

(b) -ne

(c) -gg

(d) –eq and -ne

This question was addressed to me during an interview.

My question comes from Using test and [ ] to Evaluate Expressions in division Essential Shell Programming of Unix

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The correct choice is (d) –eq and -ne

To explain: There are some comparison operators which are used by test. For example,

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