--- /dev/null
+-l, --list
+Display files contained in the archive.
+
+-x, --extract
+Extract files from the archive.
+
+-f, --file=FILE
+Read archive data from FILE instead of standard input.
+
+-v, --verbose
+Display additional information on standard output.
+
+-V, --version
+Print a version message and then exit.
+
+-H, --help
+Print this message and then exit.