[AmigaOS 3.1 Command Reference\Why]
Purpose: To print an error message that explains why the previous
Usually when a command fails the screen displays a brief message. This
message typically includes the name of the file (if that was the problem)
but does not go into detail.
For example, the message "Can't open <filename>" may appear. This could
happen for a number of reasons - AmigaDOS may not be able to locate the file,
the file is of the wrong type, or there was insufficient disk space or RAM
for the operation requested.
If the reason is not immediately obvious, enter WHY to get a more complete
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