NO.1 Which of the following commands will send output from the program myapp to both standard output
(stdout) and the file file1.log?
A. cat < myapp | cat > file1.log
B. myapp 0>&1 | cat > file1.log
C. myapp | cat > file1.log
D. myapp | tee file1.log
E. tee myapp file1.log
Answer: D

NO.2 In order to use the output of ls to overwrite a file called bazz, which of the following command lines
would you use?
A. ls > bazz
B. ls >& bazz
C. ls &> bazz
D. ls >> bazz
Answer: A

NO.3 Once a shell variable has been created, how can the variable be removed from the environment?
A. VAR=
B. set -d VAR
C. set -u VAR
D. unset VAR
Answer: D

NO.4 To change the priority of a running process, you use the ____ command. (Specify command only
with no options.) Answer:
A. RENICE,/USR/BIN/RENICE
Answer: A

NO.5 When in Normal mode in vi, which command character will insert a blank line below the current cursor
position and place the insert cursor at the beginning of the new line?
A. a
B. i
C. n
D. o
Answer: D

NO.6 To ensure that a running process continues to execute after you log out, the process should be started
with what command?
A. live
B. nohup
C. saferun
D. sh
Answer: B

NO.7 Which signal is sent by the kill command by default?
A. HUP(1)
B. QUIT(3)
C. KILL(9)
D. TERM(15)
Answer: D

NO.8 Which command will convert all tab characters in a file to spaces and print that to standard out?
A. convert
B. expand
C. retab
D. untab
Answer: B