If you cared enough to need these, hopefully you would know about them already. Here is a list so that I don't forget again!
- vmmap - equivalent of /proc/pid/maps
- fs_usage - print all disk activity caused by a given process, including page in/outs.
- sc_trace - summary of system calls executed by a process
- xattr - edit extended attributes of a file (e.g. to kill resource forks).
- ls -@ - list the extended attribuets of a file
- mdfind - Spotlight from the command-line.
