b2 -v (return code: 0)
Boost.Jam Version 2015.07. OS=LINUX. Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc. Copyright 2001 David Turner. Copyright 2001-2004 David Abrahams. Copyright 2002-2015 Rene Rivera. Copyright 2003-2015 Vladimir Prus.
b2 -h (return code: 1)
usage: b2 [ options ] targets... -a Build all targets, even if they are current. -dx Set the debug level to x (0-9). -fx Read x instead of Jambase. -jx Run up to x shell commands concurrently. -lx Limit actions to x number of seconds after which they are stopped. -mx Maximum target output saved (kb), default is to save all output. -n Don't actually execute the updating actions. -ox Mirror all output to file x. -px x=0, pipes action stdout and stderr merged into action output. -q Quit quickly as soon as a target fails. -sx=y Set variable x=y, overriding environment. -tx Rebuild x, even if it is up-to-date. -v Print the version of jam and exit. --x Option is ignored. Invalid option: -h