MCQ Tutorial - Linux->Shell Programming

1.) Which command generates possible completions for string according to the and write it to standard
output?

Options are:

A.) compgen

B.) None of the options

C.) complete

D.) continue

2.) Which expression use the value of the enclosed arithmetic expression?

Options are:

A.) $()

B.) $[]

C.) $(())

D.) ${}

3.) How do you print the lines between 5 and 10, both inclusive

Options are:

A.) cat filename | head | tail -6

B.) cat filename | tail -5 | head -10

C.) cat filename | head | tail -5

D.) cat filename | tail +5 | head

4.) If a and b are 2 variables then the meaning of a<<=b is

Options are:

A.) a = a << b

B.) a = a << b

C.) b = a << b

D.) b = b << a

5.) Syntax to suppress the display of command error to monitor?

Options are:

A.) command 2> /dev/null

B.) command 2> &2

C.) Command > &2

D.) command 2> &1

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