LFCS Question #263: Real Exam Question with Answer & Explanation

Question

Which of the following find commands will print out a list of suid root files in /usr?

Options

• Afind /usr -uid 0 -perm +4000
• Bfind -user root +mode +s /usr
• Cfind -type suid -username root -d /usr
• Dfind /usr -ls \*s\* -u root
• Efind /usr -suid -perm +4000

Explanation

The find command can locate files with specific permissions and ownership, such as SUID files owned by root.

Common mistakes.

• B. +mode +s are not valid find primaries for permission checks; the correct syntax for SUID permissions involves -perm.
• C. -type suid is not a valid argument for the -type primary, and -username is not a standard find primary.
• D. The *s* is a pattern for file names, not a permission test, and -u root is not the correct syntax for specifying user ownership.
• E. -suid is not a standard find primary for locating SUID files; the correct way is to use the -perm primary.

Concept tested. find command for SUID files

Reference. https://man7.org/linux/man-pages/man1/find.1.html

No community discussion yet for this question.