Unix Interview Questions - 27 | Snaprecruit.com

Unix Interview Questions - 27 | Snaprecruit.com

Unix interview questions part 27

Unix interview questions part 27

Take as many assements as you can to improve your validate your skill rating

Total Questions: 20

1. A perl program runs in a special interpretive mode.

Correct Answer is : TRUE

2. To test whether perl is in your PATH, use ____

Correct Answer is : perl -e

3. It is often more convenient to save perl program files with ____ extension.

Correct Answer is : .pl

4. ___ function is used for removing the last character from the line.

Correct Answer is : chop

5. perl variables have no type and no initialization.

Correct Answer is : TRUE

6. When a string is used for numeral computations, perl converts it into ___

Correct Answer is : number

7. If a variable is undefined, its value is ____

Correct Answer is : 0

8. Which of the following are concatenation operators?

Correct Answer is : .

9. To repeat a string, perl uses ___ operator.

Correct Answer is : x

10. Which function is used by perl for displaying the length of a string?

Correct Answer is : length

11. ___ function returns the first occurrence of a character in a string.

Correct Answer is : index

12. For extracting a substring, ____ function is used.

Correct Answer is : substr

13. substr function is also used to alter an existing string.

Correct Answer is : TRUE

14. Which function is used by perl for reversing a string?

Correct Answer is : reverse

15. Which function is used for handling substitutions in perl?

Correct Answer is : tr and s

16. Which escape character is used for identifying a word character?

Correct Answer is : \w

17. We can use find command for testing files with perl.

Correct Answer is : TRUE

18. We can specify filenames in command line using perl.

Correct Answer is : TRUE

19. Which of the following is referred to as default variable?

Correct Answer is : $_

20. ___ operator is used for selecting current line number.

Correct Answer is : $.

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