Unix Quiz

1. A process is an instance of _______ program.

waiting
executing
terminated
halted

2. What will be the output of $date?

Yesterday date
Current date
Current date and time
Tomarrow date and time

3. What is the associated file descriptor for stdout?

0
1
2
-1

4. Which of the boolean operator is supported in bourne shell?

and
or
not
All of the above

5. Which number is assign to read permission in Octal Permission Representation?

0
1
2
4

6. What is the use of str operator in bourne shell?

Checks if str is not the empty string
Checks if the given string operand size is non-zero
Checks if the given string operand size is zero
Checks if the value of two operands are equal or not

7. Which of the following command is used to display the environment variables only?

sh
set
env
var

8. Which option of pr command is used to eliminates the printing of header and the top/bottom margins?

-a
-f
-t
-n

9. which command is used to create a directory?

makedir
mkdirectory
makedirectory
mkdir

10. In vi editor ctrl-l is used to?

to delete one line from file
to save the file
to edit the file
clear the screen