Question 1

Which of the following commands will send output from the program myapp to both

standard output (stdout) and the file file1.log?

Options :

A : cat < myapp | cat> file1.log

B : myapp 0>&1 | cat > file1.log

C : myapp | cat > file1.log

D : myapp | teefile1.log

E : tee myapp file1.log

Answer: D

Question 2

Which of the following tasks can be accomplished using the command date? (Choose

TWO correct answers.)

Options :

A : Synchronize the hardware and system clocks.

B : Output date and time in different formats.

C : Set the system clock.

D : Set the hardware clock.

E : Update the time via NTP.

Answer: B,C

Question 3

When the command echo $$ outputs 12942, what is the meaning of 12942?

Options :

A : It is the process ID of the echo command.

B : It is the process ID of the current shell.

C : It is the process ID of the last command executed.

D : It is the process ID of the last command which has been placed in the background.

Answer: B

Question 4

Which of the following files, located in the user home directory, is used to store the Bash

history?

Options :

A : .bash_history

B : .bash_histfile

C : .history

D : .bashrc_history

E : .history_bash

Answer: A

Question 5

What is the correct command to extract the contents of the archive file download.bz2?

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