Bash command in title?

how do i put the command in my title? i'm playing around with $BASH_COMMAND but cant get it to work. here's the relevant section i have now in my bashrc:
PROMPT_COMMAND='echo -ne "\033]0;${USER}: ${PWD/$HOME/~}\007"'
thanks for any and all help.

Hi,
thanks a lot..
I used the following code.. it worked well..
===============================================================
String cmd[] = {"bash","/home/kulandaivelu/Desktop/works other's/test.sh"};
Runtime.getRuntime().exec(cmd).waitFor();
===============================================================
Thanks a lot again..

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