That is a UNIX error, the path to the "dsjob" command is not in your environment's PATH. Either add it, or change your current working directory to that directory.
nagarjuna - remember that $DSHOME is not necessarily set in most environments; that is why I didn't specify that. The more reliable method is to use something like "cd `cat /.dshome`"; also, I think that the dsenv might not need to be sourced in order to execute dsrun
Still, this is a simple pathing problem. Any command has to be either in the $PATH to be found or fully pathed or an appropriate relative path needs to be used.
-craig
"You can never have too many knives" -- Logan Nine Fingers