Error running HMM model

[Raghuveer]

 
    I am learning mahout usage and as suggested here am trying to run my sample 
but i get the below error, kindly suggestError: Could not find or load main 
class ..mahout
Note: I have set MAHOUT_HOME to trunk and $PATH has $MAHOUT_HOME/bin in 
~/.bashrc.Also am unable to run mahout from the installation directory also, i 
see same error and the command am running is:java -Xmx1024M ./mahout baumwelch 
-i hmm-input -o hmm-model -nh 3 -no 4 -e .0001 -m 1000