Gavin, 
I am building out the configuration for all the location ahead of the refresh, I need to MAC for the controller profile. They are upgrading already install AP/Controllers from 4.4 to 5.8.x. 
I can get the MAC by logging into the switch the controller is connected, but I already have to log into the controllers and get some other data. I am just trying to reduce number devices I have to log into and time spent. So not a huge priority, but I thought someone might have a quick answer. 
rfs6000 yy-yy-yy-yy-yy-yy
 use profile XXXXX-6000
 use rf-domain 9999
 hostname controller1.s09999.us
 ip name-server 111.111.111.111
 ip name-server 111.111.111.111
 ip default-gateway 10.10.10.1
 interface vlan99
  ip address xx.xx.xx.xx/xx
 ntp server 20.20.20.20
 cluster name XXXXXX
 cluster mode standby
 cluster member ip xxxxx level 1
 cluster master-priority 250