I have scheduled a shell script to run at a particular time of day using 'crontab'.
However, the echo commands output are not displayed on the terminal window when the script executes. I tried setting the crontab in the following manner,
.

But still I do not see the output on the screen. How can get the output of a script run by 'cron' on terminal screen ?

Cron normally sends you mail if a cron task generated any output (this
should include error messages).
You could redirect the output to a logfile.

To get the output in a terminal, you have to explicitly open it from the cron job and launch the script as a terminal command. Using KDE I can do something like:
note that you have to set the DISPLAY environment variable, otherwise cron does not know where to open a new terminal. Furtehrmore the user to which the crontab belongs, must have an X session open (take in mind you cannot connect to the X display of another user, since usually you don't have the right permissions).

Finally, you have to find a way to keep the terminal open after the command execution. In konsole, as you can see from my example, there is a --noclose option. You have to find the trick if you use another terminal.