batch compressing and adding gdaloveviews to a directory of files

gistfile1.sh

i=0
for file in *.tif; do 
  echo $((i++))
  tmp_tiff=$(basename $file .tif)_deflate.tif
  echo Compressing $file to $tmp_tiff 
  gdal_translate -co COMPRESS=deflate $file  $tmp_tiff
  echo Adding overviews to $tmp_tiff 
  gdaladdo -r average $tmp_tiff 2 4 8 16 32 64
  echo rm and move to orig
  mv $tmp_tiff $file
done