The subject kind of says it all. Since applications are ".app" directories, and
executing the binary in the MacOS subdir doesn't
seem to work, is there a way to launch a MacOS
application from a shell?
some apps have console support too so it will verbose right to the terminal. but to do thad you have to cd /path/to/.app/Contents/MacOS then ./nameofapp&
ex: to load quake 3:
cd /Applications/quake3/Quake3.app/Contents/MacOS
./Quake3&
likewise if there is a bunch of gibberish displayed after the execution of the last command, you can only launch the app by open -a /path/to/app