procstat

Display detailed information about processes in FreeBSD. More information: https://man.freebsd.org/cgi/man.cgi?query=procstat.

Display file descriptors of a specific process:

procstat fds {{pid}}

Show virtual memory mappings of a process:

procstat vm {{pid}}

Display process arguments:

procstat arguments {{pid}}

Show resource limits of a process:

procstat rlimit {{pid}}