todo

auto-update-system
    Detect kmod updates in ports and packages

auto-detect-laptops:
    Add Xorg config for MacBook keyboards and other configs
    https://wiki.freebsd.org/AppleMacbook
    
Change all usage exits to 64 # sysexits.h

auto-pkgsrc-setup
    Check for BSD compatibility in echo (fails on Ubuntu)
	Set sh to /bin/bash
    Don't ask about adding to path for all users unless running as root
    Set MAKE_JOBS in mk.conf (detect cores, ask user for limit)

auto-pxe-installer should back up root ssh keys

profile.d scripts should be 644

Set GATEWAY in sysconfig/network for PXE install?

auto-replace-file should take extension as third arg, otherwise use numbers

Clean ports after successful install

soft quote all strings that might contain spaces