/usr/bin/tiffsplit: invalid option -- '-' LIBTIFF, Version 4.7.2 Copyright (c) 1988-1996 Sam Leffler Copyright (c) 1991-1996 Silicon Graphics, Inc. Split a multi-image TIFF into single-image TIFF files usage: tiffsplit [option] input.tif [prefix] where option is: -M size set the memory allocation limit in MiB. 0 to disable limit.