Working in line mode

Because you are working in 3270 mode, what you type on the command line is processed in line mode (also known as canonical mode). This means your input is not processed until you press <Enter>.

To enter input, type it at the command line (===>) and press <Enter>.
To see your echoed input data or any output written by an application, look at the screen. The first line of output is displayed, and then each subsequent line of output is displayed under it.
After the screen fills up with output lines, the older output lines scroll upward, out of view, as new output lines are displayed . You can, however, use function keys to scroll the output backward and forward.