CanonCameraOnLinux

• Install the gphoto2 package (there is a gphotofs that merits further investigation):

apt-get install gphoto2

• List all the known "Canon" supported cameras and pick one close enough. I have an SD870IS, but the "Canon PowerShot SD700 (PTP mode)" works for in lieu of one for SD870IS:

gphoto2 --list-cameras | grep Canon | less

• Show all the pictures on the camera:

gphoto2 --camera "Canon PowerShot SD700 (PTP mode)" --list-files

Example Output:

There is no file in folder '/'.
There is no file in folder '/store_00010001'.
There is no file in folder '/store_00010001/DCIM'.
There are 3 files in folder '/store_00010001/DCIM/100CANON'.
#1     IMG_1386.JPG                 4671 KB 3264x2448 image/jpeg
#2     IMG_1387.JPG                 5601 KB 3264x2448 image/jpeg
#3     IMG_1388.JPG                 5357 KB 3264x2448 image/jpeg
There is no file in folder '/store_00010001/MISC'.

• Change into the directory and get the photos:

mkdir pixs
cd pixs
gphoto2 --camera "Canon PowerShot SD700 (PTP mode)" --get-all-files

• Last but not least, you'll want to get renrot to fix the orientation and to set mtime to the date of the photo

apt-get install renrot

• Run to fix the rotation and mtime

renrot --no-rename --no-trim --mtime *.JPG