More on cgminer: type in the folder where the miner is located:
cgminer --help                or  cgminer -h


Also many issues and FAQs are covered in the forum thread
dedicated to this program,
   http://forum.bitcoin.org/index.php?topic=28402.0

The output line shows the following:
 (5s):223.5G (avg):219.6Gh/s | A:330090  R:0  HW:6904  WU:3027.6/m

Each column is as follows:
5s:  A 5 second exponentially decaying average hash rate
avg: An all time average hash rate
A:   The number of Accepted shares
R:   The number of Rejected shares
HW:  The number of HardWare errors
WU:   The Work Utility defined as the number of diff1 equivalent shares / minute

 AVA 0: 23C/ 47C 2280R | 77.10G/83.20Gh/s | A:120029 R:0 HW:2295 WU:1162.5/m

Each column is as follows:
Temperature (if supported)
Fanspeed (if supported)
A 5 second exponentially decaying average hash rate
An all time average hash rate
The number of accepted shares
The number of rejected shares
The number of hardware erorrs
The Work Utility defined as the number of diff1 equivalent shares / minute

The cgminer status line shows:
 TQ: 1  ST: 1  SS: 0  DW: 0  NB: 1  LW: 8  GF: 1  RF: 1

TQ is Total Queued work items.
ST is STaged work items (ready to use).
SS is Stale Shares discarded (detected and not submitted so don't count as rejects)
DW is Discarded Work items (work from block no longer valid to work on)
NB is New Blocks detected on the network
LW is Locally generated Work items
GF is Getwork Fail Occasions (server slow to provide work)
RF is Remote Fail occasions (server slow to accept work)