gphoto, part 2

 gphoto2 -a
 (display camera/driver abilities)

 $ gphoto2 --auto-detect
 Model                          Port                                            
 ----------------------------------------------------------
 Canon EOS 5D (normal mode)     usb:            

 $ gphoto2 -l                           
 There is 1 folder in folder '/'.                                               
 ...
 There are 0 folders in folder '/store_00020002/DCIM/100EOS5D'.

 $  gphoto2 -L                               
 There are 40 files in folder '/store_00020002/DCIM/100EOS5D'.
  #1     IMG_8332.CR2                13959 KB application/x-unknown
  #2     IMG_8333.CR2                10914 KB application/x-unknown
 ...