Question

AWK utility

Consider the following awk program: { $1="A" ; print $0 }
What is the output if the input consists of the following line:
program program
Question 1 options:

program

program program

A program

The awk program fails

None of the above

Question 2
The awk command can use an inline script specified on the command line or a file based script specified by the -f option
Question 2 options:
   True
   False
Question 3
Match each awk built-in variable with its description.

Question 3 options:
  
RS

  
NR

  
FILENAME

  
NF

  
FS

1.  
The input field separator, a space by default.

2.  
The total number of input records seen so far.

3.  
The input record separator, by default a newline.

4.  
The number of fields in the current input record.

5.  
The name of the current input file.

6.  
Not an awk built-in variable.

7.  
The next field in the current input record.

Answer 1

Question 1:

Consider the following awk program: { $1="A" ; print $0 }

What is the output if the input consists of the following line:
program program

Answer:

program

program program (Correct Answer)

A program

The awk program fails

None of the above

Question 2
The awk command can use an inline script specified on the command line or a file-based script specified by the -f option

Answer:
   True (Correct Answer)
   False

Question 3
Match each awk built-in variable with its description.

Answer:
  
RS   -- The input record separator, by default a newline.
NR   -- The total number of input records seen so far.
FILENAME -- The name of the current input file.
NF   -- The number of fields in the current input record.
FS   --  The input field separator, a space by default.