Remove the jpg sidecar files from RAW+JPG imports.

remove-jpg-sidecars.sh

#!/usr/bin/env bash
#
# remove-jpg-sidecars.sh
#
# A script to remove the .jpg sidecar files which are generated by
# cameras capturing in JPG+RAW mode.
#
# How it works:
#
#   1) It generates a list of all dng files in the current directory.
#   2) It generates a list of all jpg files in the current directory.
#   3) It checks for common file names in the two lists.
#   4) It removes the 'jpg' version of common files.
#
set -eu

# Tidy up after ourselves.
function finish {
    rm -f .jpgs .dngs .common
}
trap finish EXIT

# Detect files.
echo -n "Detecting dng files ... "
find . -iname '*.dng' | sed -r 's/\.dng$//I' > .dngs
echo "done"

echo -n "Detecting jpg files ... "
find . -iname '*.jpg' | sed -r 's/\.jpg$//I' > .jpgs
echo "done"

echo -n "Matching common file names ... "
comm -1 -2 .jpgs .dngs > .common
echo "done"

# Store line counts.
num_jpgs=$(wc -l .jpgs | awk '{print $1;}')
num_dngs=$(wc -l .dngs | awk '{print $1;}')
num_common=$(wc -l .common | awk '{print $1;}')
total=$((num_jpgs+num_dngs))

echo
echo "  # of DNGs in library: $num_dngs"
echo "  # of JPGs in library: $num_jpgs"
echo "    Total library size: $total"
echo
echo "     # of JPG sidecars: $num_common"
echo

while true; do
    read -p "Do you wish to remove $num_common sidecar jpgs? (yes/no) " yn
    case $yn in
        [Yy]* )
            echo
            i=1
            while read line; do
                if [[ -f "$line.jpg" ]] && [[ -f "$line.dng" ]]; then
                    jpg=$(find . -ipath "$line.jpg")
                    echo "($i / $num_common) $jpg"
                    i=$((i+1))
                    # Remove the file!
                    rm "$jpg"
                fi
            done < .common
            break;;
        [Nn]* )
            exit;;
        * )
            echo "Please answer yes or no.";;
    esac
done