Which one of the following option is used for AND operation in test command?(a) -o(b) -a(c) -e(d) -anI got this question by my college director while I was bunking the class.This is a very interesting question from Using test and [ ] to Evaluate Expressions in division Essential Shell Programming of Unix

Which one of the following option is used for AND operation in test co

1.	Which one of the following option is used for AND operation in test command?(a) -o(b) -a(c) -e(d) -anI got this question by my college director while I was bunking the class.This is a very interesting question from Using test and [ ] to Evaluate Expressions in division Essential Shell Programming of Unix
Answer» The correct ANSWER is (b) -a The explanation is: test also permits the CHECKING of more than ONE condition in the same LINE using -a (AND) operator. For EXAMPLE,

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