i3_2_gtif.sh

#!/bin/bash
set +x

# LandSat files

for file in /nas/data/imagery/i3/*.tif; do 
    input_file=${file}
    base_file=`basename ${file}`
    gtiff_file=gtif/${base_file%.*}.tif
    if [ -s $gtiff_file ]
    then
        continue
    fi 
    
    echo Converting $input_file to $gtiff_file
    gdal_translate -of GTiff -co TILED=YES -co BLOCKXSIZE=512 -co BLOCKYSIZE=512 -co COMPRESS=JPEG --config PHOTOMETRIC YCBCR $input_file $gtiff_file

    # build the overviews in a background job
    if [ -s $gtiff_file ]
    then
        echo Adding overviews to $gtiff_file
        gdaladdo -r cubic --config COMPRESS_OVERVIEW JPEG --config PHOTOMETRIC_OVERVIEW YCBCR --config INTERLEAVE_OVERVIEW PIXEL $gtiff_file 2 4 8 16 32 64 128 256 &
    fi        
done