[Debian-eeepc-devel] FnF6 key

[Jean-Christophe]

(Damyan, I wasn't able to send you this message:

host master.debian.org[70.103.162.29] said: 550-Callback
    setup failed while verifying <jc.sid at free.fr>

, so I send it in  the list)

great for fnf6.
I have a question:
In

if [ "${FnF6:-NONE}" != 'NONE' ]

I understand the != 'NONE', but what does mean ${FnF6:-NONE}? Does - 
mean that if $FnF6 doesn't exist it should be NONE?

Thanks,
Jean-Christophe