Simple wrapper script around dcraw and G'MIC. For command line processing of raw images.
Camera profiles originally from dcraw source, extracted with dlRaw.

Change the script to point to your installation directory and camera profile. 

To view raw file:
gmicraw example.cr2

To create jpg preview from raw file:
gmicraw example.cr2 -l16develop_preview example.jpg

To create 16 bit full size tiff from raw file:
gmicraw example.cr2 -l16develop example.tiff