Awk Programming Questions And Answers

21⟩ What is the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

a) google

Output:

root@ubuntu:/home/google# ./test.awk

google

root@ubuntu:/home/google#

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22⟩ What is the output of the program? #! /usr/bin/awk -f BEGIN { a[1]="google" a[2]="google" for(i=1;i<3;i++) { print a[i] } } a) "google" will print 2 times b) "google" will print 3 times c) program will generate error becasue 2 array elements have the same value d) program will generate syntax error

a) "google" will print 2 times

Output:

root@ubuntu:/home/google# ./test.awk

google

root@ubuntu:/home/google#

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23⟩ Define the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

a) google

Output:

root@ubuntu:/home/google# ./test.awk

google

root@ubuntu:/home/google#

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24⟩ What is the output of the program? #! /usr/bin/awk -f #This filename is text.awk BEGIN { print FILENAME } a) test.awk b) program will print nothing c) syntax error d) fatal error

b) program will print nothing

Explanation:

The built-in variable FILENAME is the name of file that awk is currently reading and in this program there is no file listed on the command line.

Output:

root@ubuntu:/home/google# ./test.awk

root@ubuntu:/home/google#

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25⟩ Which one of the following is used by awk to control the conversion of numbers to string? a) RS b) OFMT c) SUBSEP d) RSTART

b) OFMT

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26⟩ What is the meaning of $ sign in awk programming? a) the word following is the name of variable b) we are referring to a field or column in the current line c) $ sign is used for comment d) none of the mentioned

b) we are refering to a field or column in the current line

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27⟩ In awk program, the name of the array can not be same with the a) name of variable b) value of the array element c) both (a) and (b) d) none of the mentioned

a) name of variable

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28⟩ RSTART is set by invoking the a) match function b) index function c) asort function d) split function

a) match function

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29⟩ In awk, the built-in variable FS is a) input field seperator b) output field seperator c) record seperator d) subscript seperator

a) input field seperator

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30⟩ What is FNR? a) FNR is the current record number in the current file b) FNR is the number of fields in the current input record c) FNR is an array contains the value of environment d) none of the mentioned

a) FNR is the current record number in the current file

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31⟩ Which statement skips over the rest of the loop body, causing the next cycle around the loop to begin immediately? a) continue b) break c) next d) none of the mentioned

a) continue

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32⟩ If the argument is supplied to the exit statement a) its value is used as the exit status code for the awk process b) syntax error will generate c) exit returns status 0 d) exit returns status 1

a) its value is used as the exit status code for the awk process

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33⟩ Which statement instructs gawk to stop processing the current data file? a) next b) nextfile c) exit d) exitfile

b) nextfile

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34⟩ The break statement a) jumps out of the innermost for loop b) jumps out of the innermost while loop c) jumps out of the innermost do-while loop d) all of the mentioned

d) all of the mentioned

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35⟩ The next statement a) immediately stops processing the current record b) go to the next record c) both (a) and (b) d) none of the mentioned

c) both (a) and (b)

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36⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=5 while (a<5) { print "google" a++; } } a) nothing will print b) "google" will print 5 times c) program will generate syntax error d) none of the mentioned

a) nothing will print

Explanation:

The condition of while statement is false so commands inside the loop will not execute.

Output:

root@ubuntu:/home/google# ./test.awk

root@ubuntu:/home/google#

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37⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=6 do { print "google" a++ } while (a<5) } a) nothing will print b) "google" will print 5 times c) "google" will print 4 times d) "google" will print only 1 time

d) "google" will print only 1 time

Explanation:

Even the condition is false of do-while loop, the body is executed once.

Output:

root@ubuntu:/home/google# ./test.awk

google

root@ubuntu:/home/google#

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38⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { for(i=0;i<=5;i++) { print i i++ } } a) 0,2,4 will print b) 1,3,5 will print c) 1,2,3,4,5 will print d) syntax error because i is not initialised

a) 0,2,4 will print

Output:

root@ubuntu:/home/google# ./test.awk

0

2

4

root@ubuntu:/home/google#

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39⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=0 do { print "google" a++ } while (a<5) } a) "google" will print 4 times b) "google" will print 5 times c) nothing will print d) syntax error

b) "google" will print 5 times

Output:

root@ubuntu:/home/google# ./test.awk

google

root@ubuntu:/home/google#

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40⟩ The command "awk '{if ("9″>"10″) print "google" else print "linux"}'" a) will print "google" b) will print "linux" c) will generate syntax error d) none of the mentioned

c) will generate syntax error

Explanation:

Semicolon is required just before the else statement to parse the statement.

Output:

root@ubuntu:/home/google# awk '{if ("9″>"10″) print "google" else print "linux"}'

awk: {if ("9″>"10″) print "google" else print "linux"}

awk: ^ syntax error

root@ubuntu:/home/google#

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40 Awk Programming Questions And Answers

21⟩ What is the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

23⟩ Define the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

24⟩ What is the output of the program? #! /usr/bin/awk -f #This filename is text.awk BEGIN { print FILENAME } a) test.awk b) program will print nothing c) syntax error d) fatal error

25⟩ Which one of the following is used by awk to control the conversion of numbers to string? a) RS b) OFMT c) SUBSEP d) RSTART

26⟩ What is the meaning of $ sign in awk programming? a) the word following is the name of variable b) we are referring to a field or column in the current line c) $ sign is used for comment d) none of the mentioned

27⟩ In awk program, the name of the array can not be same with the a) name of variable b) value of the array element c) both (a) and (b) d) none of the mentioned

28⟩ RSTART is set by invoking the a) match function b) index function c) asort function d) split function

29⟩ In awk, the built-in variable FS is a) input field seperator b) output field seperator c) record seperator d) subscript seperator

30⟩ What is FNR? a) FNR is the current record number in the current file b) FNR is the number of fields in the current input record c) FNR is an array contains the value of environment d) none of the mentioned

31⟩ Which statement skips over the rest of the loop body, causing the next cycle around the loop to begin immediately? a) continue b) break c) next d) none of the mentioned

32⟩ If the argument is supplied to the exit statement a) its value is used as the exit status code for the awk process b) syntax error will generate c) exit returns status 0 d) exit returns status 1

33⟩ Which statement instructs gawk to stop processing the current data file? a) next b) nextfile c) exit d) exitfile

34⟩ The break statement a) jumps out of the innermost for loop b) jumps out of the innermost while loop c) jumps out of the innermost do-while loop d) all of the mentioned

35⟩ The next statement a) immediately stops processing the current record b) go to the next record c) both (a) and (b) d) none of the mentioned

36⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=5 while (a<5) { print "google" a++; } } a) nothing will print b) "google" will print 5 times c) program will generate syntax error d) none of the mentioned

37⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=6 do { print "google" a++ } while (a<5) } a) nothing will print b) "google" will print 5 times c) "google" will print 4 times d) "google" will print only 1 time

38⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { for(i=0;i<=5;i++) { print i i++ } } a) 0,2,4 will print b) 1,3,5 will print c) 1,2,3,4,5 will print d) syntax error because i is not initialised

39⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=0 do { print "google" a++ } while (a<5) } a) "google" will print 4 times b) "google" will print 5 times c) nothing will print d) syntax error

40⟩ The command "awk '{if ("9″>"10″) print "google" else print "linux"}'" a) will print "google" b) will print "linux" c) will generate syntax error d) none of the mentioned

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Awk Programming

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40 Awk Programming Questions And Answers

21⟩ What is the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

23⟩ Define the output of the program? #! /usr/bin/awk -f BEGIN { a["linux","MCQ"]="google" print a["linux","MCQ"] } a) google b) linux MCQ c) a["linux","MCQ"] d) syntax error

24⟩ What is the output of the program? #! /usr/bin/awk -f #This filename is text.awk BEGIN { print FILENAME } a) test.awk b) program will print nothing c) syntax error d) fatal error

25⟩ Which one of the following is used by awk to control the conversion of numbers to string? a) RS b) OFMT c) SUBSEP d) RSTART

26⟩ What is the meaning of $ sign in awk programming? a) the word following is the name of variable b) we are referring to a field or column in the current line c) $ sign is used for comment d) none of the mentioned

27⟩ In awk program, the name of the array can not be same with the a) name of variable b) value of the array element c) both (a) and (b) d) none of the mentioned

28⟩ RSTART is set by invoking the a) match function b) index function c) asort function d) split function

29⟩ In awk, the built-in variable FS is a) input field seperator b) output field seperator c) record seperator d) subscript seperator

30⟩ What is FNR? a) FNR is the current record number in the current file b) FNR is the number of fields in the current input record c) FNR is an array contains the value of environment d) none of the mentioned

31⟩ Which statement skips over the rest of the loop body, causing the next cycle around the loop to begin immediately? a) continue b) break c) next d) none of the mentioned

32⟩ If the argument is supplied to the exit statement a) its value is used as the exit status code for the awk process b) syntax error will generate c) exit returns status 0 d) exit returns status 1

33⟩ Which statement instructs gawk to stop processing the current data file? a) next b) nextfile c) exit d) exitfile

34⟩ The break statement a) jumps out of the innermost for loop b) jumps out of the innermost while loop c) jumps out of the innermost do-while loop d) all of the mentioned

35⟩ The next statement a) immediately stops processing the current record b) go to the next record c) both (a) and (b) d) none of the mentioned

36⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=5 while (a<5) { print "google" a++; } } a) nothing will print b) "google" will print 5 times c) program will generate syntax error d) none of the mentioned

37⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=6 do { print "google" a++ } while (a<5) } a) nothing will print b) "google" will print 5 times c) "google" will print 4 times d) "google" will print only 1 time

38⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { for(i=0;i<=5;i++) { print i i++ } } a) 0,2,4 will print b) 1,3,5 will print c) 1,2,3,4,5 will print d) syntax error because i is not initialised

39⟩ What is the output of this program? #! /usr/bin/awk -f BEGIN { a=0 do { print "google" a++ } while (a<5) } a) "google" will print 4 times b) "google" will print 5 times c) nothing will print d) syntax error

40⟩ The command "awk '{if ("9″>"10″) print "google" else print "linux"}'" a) will print "google" b) will print "linux" c) will generate syntax error d) none of the mentioned

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