"G" commands: G name = get a file
             GM name = get more


G xxxxx will get the file named "xxxxx" from the disk and display it on the
        screen.  The "G" command will be ignored if there are already some
        items in SCORE's memory.  This is to ensure that there will not be
        accidental copying of material on top of other material.  Normally,
        the current material is saved and then a RS command (restart) is
        given.  If RS is followed by some file name it works exactly like G
        except that it erases from the memory any items that might be there.
        (Always use this with care.)

GM zzzzz will get the file named "zzzzz" and ADD it to the current memory.
         This command may be used for concatenating several files, each
         containing a relatively small amount of data.  It is always a good
         idea to save the current data before doing GM.


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