SYNTAX: unsquashfs [OPTIONS] FILESYSTEM [files to extract or exclude (with
-excludes) or cat (with -cat )]

Run
  "unsquashfs -help-option <regex>" to get help on all options matching <regex>

Or run
  "unsquashfs -help-section <section-name>" to get help on these sections
	SECTION NAME		SECTION
	extraction		Filesystem extraction (filtering) options:
	information		Filesystem information and listing options:
	xattrs			Filesystem extended attribute (xattrs) options:
	runtime			Unsquashfs runtime options:
	help			Help options:
	misc			Miscellaneous options:
	environment		Environment:
	exit			Exit status:
	extra			See also (extra information elsewhere):
	decompressors		Decompressors available:

Or run
  "unsquashfs -help-all" to get help on all the sections