SSH commands for Unifi

Once you are able to log in via SSH to the Unifi, there are several useful commands:

• Reset AP to Factory Default
  syswrapper.sh restore-default
• Manually Upgrade AP
  syswrapper.sh upgrade http://ip-of-controller:8080/dl/firmware/BZ2/2.3.8.1597/firmware.bin
• Enter CLI
  mca-cli
• Set Inform Server
  set-inform http://ip-of-controller:8080/inform

Source : http://www.wisp.net.au/commands-unifi-pm-22.html