Unix Quiz

1. The original Unix shell was written by __________.

Stephen R. Bourne
Stephen R. Korn
Stephen R. C.
Stephen Watson

2. The basic building blocks of Unix permissions are ____________.

read
write
execute
All of the above

3. What is the syntax of array initialization when you are using bash shell?

array_name[index]=value
set -A array_name value1 value2 ... Valuen
array_name=(value1 ... valuen)
${array_name[index]}=value

4. Unix provide multitasking and multiuser environment?

TRUE
FALSE
Unix provide multitasking but not multiuser
Unix provide multiuser but not multitasking

5. Which of the following is default permission set for ordinary files?

rw-rw-rw-
rwxrwxrwx
r-r-r-
rw-rw-rwx

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

-a
-f
-t
-n

7. which command is used to create a directory?

makedir
mkdirectory
makedirectory
mkdir

8. POSIX identifies regular expressions as belonging to ____ categories.

2
3
4
5

9. Which of the following loops is not available in shell?

The for loop
The until loop
The select loop
The foreach loop

10. Which command is used to list the status of jobs?

JOBS
jobs
fg
bg