It is all very well explained in the FAQ: --show
To sum it up: --show needs to be run on the original (not modified) hash list, it must be run after the cracking was already finished and --left is the "opposite" of --show
To sum it up: --show needs to be run on the original (not modified) hash list, it must be run after the cracking was already finished and --left is the "opposite" of --show