to make it short, one of my SATA SSDs contains a FreeBSD system, I didn't use it for more than year. (I still remember that I used it to introduce UNIX-like to someone)

basically the filesystem permissions are in a bad shape, my definition of bad shape is:
lot of system directories and files and writable by OTHERS, that is not all even some system files are part of normal user group.

though one could say just recursively unset the write permission on these directories and their files plus set the group to either wheel or operator, but that is not the point here.

so what I'm looking for is if there is any tool that can analyze and list permissions on filesystem, things like list all directories owned by non-root user, or directories and files not owned by wheel or operator groups or even what groups have write permissions, etc.,...

and I don't really want to create such tool from scratch unless there is no such tool available it can get very complex to design one.

'find' should do the job, shouldn't it?

I didn't know that, as I was using find only to find files and directories of interest; never bothered to read the whole man page about it.

now after reading, I can tell -perm and -flag are the arguments I need.

thank you

you are welcome