Convert HEICs in a directory to JPGs.

heic-to-jpg.sh

#!/bin/bash
# This script uses Imagemagick to do the trick.
# For platfrom-specific installation instruction, please refer to https://imagemagick.org/script/download.php
#
# Sample usage: find -iname *.heic | xargs -L1 heic-to-jpg.sh

heic=$1

if [ ! -f "$heic" ]; then
	echo "Usage: $(basename $0) <target HEIC file>"
	exit 0
fi

jpg="${heic:0:${#heic}-4}jpg"
magick "$heic" -quality -1 -verbose "$jpg"
touch -r "$heic" "$jpg"