Convert HEIC files to JPG on Ubuntu

Apple uses High Efficiency Image File Format for Photo’s and this in photo’s with the .HEIC extension. you can easily convert this on Ubuntu using;

sudo apt-get install libheif-examples

for photo in *.HEIC; do heif-convert $photo ${photo/%.HEIC/.jpg}; done

Alternatively you could disable the HEIF format on your iPhone under Settings > Camera; https://support.apple.com/en-us/HT207022