JasonMoho

for i in $(seq 0 1 9)
do
  SIZE=$((2**$i))
  HEADER="########### SIZE = $SIZE ###########"
  SEP="#################################"
  echo $HEADER >> outwdbench.txt 2>&1
  for j in $(seq 0 1 4)
  do
    echo $SEP >> outwdbench.txt 2>&1
    CMD="dd if=/dev/zero of=here bs=1M count=$SIZE oflag=direct"