UNIX-3

1. Which of the following commands is used to list contents of directories?

Ls

Lp

Dir

Tar

None of the above

2. Which command will be used with vi editor to insert text to left of cursor?

S

A

I

None of the above

3. Which option will be used with ps command to slow the entire command line of the process being run?

-4

-1

-4

-f

None of the above

4. Which of the following directories contain all the Ales created by a user, including his login directory?

/tmp

/etc

/usr

/dev

None of the above

5. Which of the following command addresses all users who are currently hooked on?

Write

Mail

Wall

Mesg

None of the above

6. Which of the following commands is used to obtain a list of all files by modification time?

Ls -1

Ls -t

Ls -i

Ls -R

None of the above

7. Which of the following special shell variables is used to process number of the last background job?

$!

$#

$0

$*

None of the above

8. Which command is used to display a file contents in octal form?

Cd

Od

Of

Oct

None of the above

9. Which option is used with rm command to make the command prompt the user with each filename and a ?, before acting on it

-r

-x

-i

-1

None of the above

10. In vi editor, forward search is performed using the command.

:pat

:/pat

-/pat

All the above

None of the above

Unix-3