advpng --version (return code: 0)
advancecomp v1.20 by Andrea Mazzoleni, http://www.advancemame.it
advpng --help (return code: 0)
advancecomp v1.20 by Andrea Mazzoleni, http://www.advancemame.it
Usage: advpng [options] [FILES...]
Modes:
-l, --list List the content of the files
-z, --recompress Recompress the specified files
Options:
-0, --shrink-store Don't compress
-1, --shrink-fast Compress fast (zlib)
-2, --shrink-normal Compress normal (7z)
-3, --shrink-extra Compress extra (7z)
-4, --shrink-insane Compress extreme (zopfli)
-i N, --iter=N Compress iterations
-f, --force Force the new file also if it's bigger
-q, --quiet Don't print on the console
-h, --help Help of the program
-V, --version Version of the program