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 ?
Correct answer: D. find /user/* \(-mtime + 365 - a - atime +365 \) - OK rm {} \;
- 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 {} \;
Explanation
The find expression combines -mtime +365 and -atime +365, so both modification and access must be older than one year; -ok rm asks for confirmation before deletion. The other choices either omit one condition or use invalid commands and syntax.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Software Development Lifecycle
423 free Software Development Lifecycle MCQs from Software Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Software Engineering questions like this
Software Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Software Development Lifecycle questions
Which command is used to link the files ?
Which command is used with file named 'note' to remove the executable permission from the user and assign read permission to the group and others?
Which is the earliest and most widely used shell that came with the UNIX system ?
Which of the following commands is used to count the total number of lines, words, and characters contained in a file ?
The [line number G] key allows you________________?
Which of the following set options is used with vi editor to ignore case while searching for patterns ?