gphoto2
Control digital cameras from the command line. tldr-pages
On Linux
Linux
List connected cameras
gphoto2 --auto-detectIdentifyList files on the camera
gphoto2 --list-filesIdentifyDownload all images
gphoto2 --get-all-filesIdentifyDownload only new images (skip existing)
gphoto2 --get-all-files --newIdentifyDownload files 1 through 5
gphoto2 --get-file 1-5IdentifyDelete all files on the camera
gphoto2 --delete-all-filesIdentifyCapture an image and download it
gphoto2 --capture-image-and-downloadIdentifyShow camera information
gphoto2 --summaryIdentify