Predefined Ruler $EMPLOYE

In this exercise you activate a previously defined ruler called $EMPLOYE. This ruler contains line-editing options, such as Headers for assigning lines as headers, and Delete for deleting lines from the display.

1. Verify that you are in the EMPLOYEE REPORT of user PROD. Check this by looking at the third line of the screen. The USR field should say PROD, and the REP field should say EMPLOYEE REPORT.
2. From the COMMAND field, type RULER $EMPLOYE and press Enter.

   View the edited report. Notice that the header lines are highlighted. Scroll forward and backward (PF08/PF20 – PF07/PF19). The header lines do not scroll, enabling you to identify each column of the page even after scrolling down more lines than the terminal can display on one screen.

   Look at the RUL field at the right of the third line of the screen. This field indicates the ruler name activated (if any). It is possible to deactivate the ruler.

3. Type RULER and press Enter.

   View the same report without a ruler. Activate and deactivate the ruler as many times as you want. Reactivate the ruler. The ruler you have just activated contains headers for easier viewing.