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

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

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Q. perl variables have no type and no initialization.

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

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

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

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

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Q. Which one of the following is the most powerful filter?

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Q. awk makes a distinction between numeric and string variables.

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Q. The _____ function extracts a substring from a string.

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Q. Which of the following is a built-in function for awk?

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Q. awk has some built-in functions which are used for arithmetic and string operations.

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Q. awk uses _____ dimensional arrays.

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Q. print statement is necessary for printing a line.

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Q. Which of the following is supported by awk?

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Q. sqroot(x) function returns the square root of x.

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Q. For running a UNIX command within awk, we’ve to use ____ function.

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Q. ____ function breaks up a string on the basis of delimiter.

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Q. ____ section can be used if we’ve to print something before processing the first line.

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Q. awk uses ______ for splitting a line into fields.

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