CHARMM Development Project Forums User Discussion & Questions Setup, I/O, and Basic questions basic question

can somebody explainme this line word by word?
"energy fshift vswitch cutnb 100. ctofnb 99. ctonnb 98. inbfrq 1 cdie eps 1.0 atom vatom"

I assume you read nbonds.doc, but here goes:
energy - calculate the energy of the system
fshift - use the Force Shift smoothing of the electrostatic interactions
vswitch - use a switching function to smooth the vdW interactions
cutnb 100 - generate the nonbond (neighbor) list out to 100A
ctofnb 99 - non-bonded interactions beyond 99A will be zero
cfonnb 98 - start switching off vdW interactions at 98A
inbfrq 1 - update the non-bond list every step (of a minimization/MD run)
cdie - the dielectric constant is not distance dependent
eps 1.0 - and has the value 1.0
atom - trunctation of Coulomb interactions is based on atom-atom distance
vatom - truncation of vdW interactions is based on atom-atom distance