# system_profiler
# Report system hardware and software configuration (Mac OS X)

# Display a full system profiler report which can be opened by System Profiler.app:
system_profiler -xml > MyReport.spx

# Display a hardware overview (Model, CPU, Memory, Serial, etc):
system_profiler SPHardwareDataType

# Print the system serial number:
system_profiler SPHardwareDataType|grep "Serial Number (system)" |awk '{print $4}'