Most times you'll tell gifsicle to alter its inputs by giving it command line options. This style doesn't work very well if you want to modify GIF files in place. The next sections index gifsicle 's options and tell you how to run it in gory detail. New users may want to skip to the Examples section at the end. This index is meant to help you find options that do what you want.
Concepts are on the left, relevant gifsicle options are on the right.
Anything else is a GIF input file. You don't need to type the whole long descriptive name, just enough to make it unambiguous. Mode Options Mode options tell gifsicle what kind of output to generate. There can be at most one mode option, which must precede any GIF inputs. Combine all GIF inputs into one file with multiple frames and write that file to the standard output.