I too am trying to set up my linux box to solo mine, I saved smartcoin.conf to /home/user/.smartcoim

I ran the command you said and didn't get any joy.

here's what cgminer spat out:
 
 [2014-03-08 20:25:02] Started cgminer 3.7.2
 [2014-03-08 20:25:02] Started cgminer 3.7.2
 [2014-03-08 20:25:02] Probing for an alive pool
 [2014-03-08 20:25:02] Pool 0 slow/down or URL or credentials invalid

What the command I should be using?

I tried a variant of other command I have has success with, but no joy, here's an example:

GPU_MAX_ALLOC_PERCENT=100 GPU_USE_SYNC_OBJECTS=1 ./cgminer -I 18 -g 2 -w 256 --thread-concurrency 2400 --scrypt -o http://127.0.0.1:58583 -u myUser -p myPassword

Any info would be a great help.