$ECHO |
![]() ![]() ![]() |
The $ECHO command inserted in a paragraph enables or disabled paragraph tracing.
Format
$ECHO {ON} $ECHO OFF
The $ECHO command (optionally with a qualifier of ON) enables paragraph tracing. When this mode is active, the command processor displays the paragraph name, line number and sentence for each line executed.
The $ECHO OFF command disables paragraph tracing.
Example
The following paragraph might be used to delete all items in the BP.OUT file for which there is no corresponding source record in the BP file.
VOC CLEAN.BP 1: PA 2: $ECHO 3: SELECT BP.OUT 4: NSELECT BP 5: IF @SELECTED = 0 THEN STOP 6: DELETE BP.OUT 7: DATA Y
Running this with the $ECHO on line 2 shows are trace of each command prior to execution: :CLEAN.BP CLEAN.BP 3: SELECT BP.OUT 223 record(s) selected to list 0 CLEAN.BP 4: NSELECT BP 17 record(s) selected to select list 0 CLEAN.BP 5: IF @SELECTED = 0 THEN STOP CLEAN.BP 6: DELETE BP.OUT Use active select list (First item 'J7')? Y 17 record(s) deleted
|