Convert JPG to EPS

for f in *.jpg
do
  g=`echo "$f" | sed 's/\.jpg$/\.eps/'`
  convert $f $g
done

Reduce EPS size

for f in *.eps
do
  echo "Converting" $f
  epstopdf $f

  echo "Moving back"
  g=`echo "$f" | sed 's/\.eps$/\.pdf/'`
  pdftops -eps $g
done

for f in *.ps
do
  g=`echo "$f" | sed 's/\.ps$/\.jpg/'`
  gs -sDEVICE=jpeg -sOutputFile=$g < $f
done