81. What command is used to display a file contents in octal form ?
A. oct
B. of
C. od
D. cd
✅ The correct answer is option C.
Basic of linux unix MCQs
82. Which of the following commands is used to remove files ?
A. erase
B. delete
C. rm
D. dm
✅ The correct answer is option C.
83. Which option is used with rm command to make the command prompt the user with each filename and a ?, before acting on it_________________?
A. -r
B. -x
C. -i
D. -1
✅ The correct answer is option C.
84. What command is used to display the characteristics of a process ?
A. au
B. ps
C. du
D. pid
✅ The correct answer is option B.
85. Which of the following command is used to count just the number of lines contained in a file ?
A. wc -lD.
B. wc -c
C. wc -w
D. wc -r
✅ The correct answer is option nu.
86. Which of the following commands is used to count the total number of lines, words, and characters contained in a file ?
A. count p
B. wc
C. wcount
D. countw
✅ The correct answer is option B.
87. Which of the following command addresses all users who are currently hooked on ?
A. write
B. mail
C. wall
D. mesg
✅ The correct answer is option C.
88. Which symbol is used to separate more than one command in the same command line ?
A. $
B. #
C. :
D. ;
✅ The correct answer is option D.
89. What script is run for setting bash global defaults for all users ?
A. /etc/.profile
B. /etc/.bashrc
C. /etc/.log
D. /etc/profile
✅ The correct answer is option D.
90. You can append to a file instead of overwriting by using the________________?
A. > symbols
B. >> symbols
C. < symbols
D. << symbols
✅ The correct answer is option B.