UNIX - FILTERS AND REGULAR EXPRESSIONS MCQ

Unix operating system

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The interval regular expression uses the character _______
Which one of the following command will be used for adding two spaces before every line in emp.lst?
Which shortcut does sed offer to replace the string Linux with Red hat Linux?
Which command will be used for selecting lines 3 to 10 from emp.lst?
Which filter apart from perl, is the most powerful?
Awk filter operates at field level
Which of the following will be used to print lines containing ‘manager’ in emp.lst?
The default action if selection_criteria is missing is ____
For pattern-matching, awk uses regular expressions in ____ style
awk uses ______ for splitting a line into fields
____ section can be used if we’ve to print something before processing the first line
____ function breaks up a string on the basis of delimiter
For running a UNIX command within awk, we’ve to use ____ function
sqroot(x) function returns the square root of x
Which of the following is supported by awk?
print statement is necessary for printing a line
awk uses _____ dimensional arrays
awk has some built-in functions which are used for arithmetic and string operations
Which of the following is a built-in function for awk?
The _____ function extracts a substring from a string

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