A. ls -l
B. ls -x
C. ls -F
D. ls -a
✅ The correct answer is option D.
Basic of linux unix MCQs
What command is used to assign only read permission to all three categories of the file’letter’ ?
A. chmod u + r, g + r, o – x letter
B. chmod ugo = r letter
C. chmod a – rw letter
D. chmod go + r letter
✅ The correct answer is option B.
Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year ?
A. find -mtime +365 | rm
B. grep (/usr/*) – mtime + 365 | -ok rm
C. find -name – mtime + 365 / – ok rm
D. find /user/* (-mtime + 365 – a – atime +365 ) – OK rm {} ;
✅ The correct answer is option D.
Which operator will be used with chmod command to assign absolute permission ?
A. +
B. –
C. =
D. %
✅ The correct answer is option C.
Who has developed the Linux ?
A. Bob Young
B. Mark Eving
C. Richard Stallman
D. Linus Torvalds
✅ The correct answer is option D.
What command is used to count the total number of lines, words, and characters contained in a file ?
A. countw
B. wcount
C. wc
D. count p
✅ The correct answer is option C.
Which set option is used with vi editor to display line numbers on screen ?
A. nm
B. nu
C. ic
D. li
✅ The correct answer is option B.
What command is used with vi editor to append text at end of line ?
A. I
B. i
C. a
D. A
✅ The correct answer is option D.
Which command is used to display the characteristics of a process ?
A. pid
B. du
C. ps
D. au
✅ The correct answer is option C.
Which symbol will be used with grep command to match the pattern pat at the beginning of a line ?
A. ^pat
B. $pat
C. pat$
D. pat^
✅ The correct answer is option A.