Alternative to CWM as a simple command-line reasoner for RDF

When teaching about semantic web technology, I've used CWM as a simple
command line tool to show inferences that can be drawn from a file of
triples.  I've used N3 rules for RDF and RDFS and parts of OWL.  I feel
like there must be something more recent than CWM that will work in a
generic Unix environment and either has the reasoning built in or can use
SWRL rules.  Ideally it would also be easy for students to download,
install and use for exploration and experiments.  Any suggestions?

-- 
Tim Finin, Computer Science & Electrical Engr, U. of Maryland, Baltimore
County, 1000 Hilltop, Baltimore MD 21250 voice:4104993522 fax:4104553969
finin@umbc.edu  tfinin@gmail.com  skype:timFinin  http://umbc.edu/~finin