echo - Print a string on the display.
echo string
Echo takes one argument, string, and prints that argument to the output window be it a terminal or text widget. Echo should be used in defined commands to give information to the user. Echo is a callback for the mmucl library.
echo "Wohooooooo!"
This will print "Wohoooooo!" to the console in
xmmucl or to a text widget in winmmucl.