when i tried to compile the sample file using mkdfa.pl it says,
mkdfa.pl : command not found
could anyone tell me whats going on.. thank
mkdfa.pl comes from julius. You need to download julius (julius-bin is sufficient), and ensure that mkdfa.pl is in your path when you run it (or specify the full path to it).
It's in julius-dir/bin/mkdfa.pl (for julius-4.2.1 anyway).
this one caught me out too, the perl script has been made into a executable perl script on Ubuntu, so instead of
its installed to /usr/bin/mkdfa