A directory at /data/shared currently has permissions set to 0777, allowing all users full access. You need to keep read, write, and execute rights for everyone but ensure that only file owners can remove or rename their own files. Which command achieves this goal?
chmod 6777 /data/shared
chmod 2777 /data/shared
chmod 0777 /data/shared
chmod 1777 /data/shared
The numeric mode prefix 1 applies the sticky bit. Mode 1777 grants read, write, and execute access to owner, group, and others while restricting file deletion and renaming within the directory to the file’s owner. Prefix 2 sets the setgid bit (group ID), prefix 6 sets both setuid and setgid bits, and prefix 0 leaves no special bits, so other users could remove files they don’t own.
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