Converts the output of disklabel from bytes to Gigabytes on FreeBSD

echo `disklabel mfid1s4 | sed -n '$p' | awk '{print $2}'` / 1024 / 1024 | bc -l
This was done in csh.
Sample Output
newops# disklabel mfid1s2                                                                                                                                                                                   
# /dev/mfid1s2:
8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c: 1874849760        0    unused        0     0         # "raw" part, don't edit
  d: 1874849760        0    4.2BSD     2048 16384 28552 

newops# echo `disklabel mfid1s2 | sed -n '$p' | awk '{print $2}'` / 1024 / 1024 | bc -l                                                                                                                     
1787.99606323242187500000

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