Open/Close RZ Zebra logical Units

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| Geant 3.11  |               GEANT User's Guide              | IOPA400  ##
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Author(s) : R.Brun                                     Submitted: 20.08.87
Origin    : Same                                                 Revised:
                                  

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           | CALL GRFILE (LUN,CHDIR,CHOPT) |
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LUN

Logical unit number

CHDIR

Name of the RZ top directory

CHOPT

Options For more details see routine FZFILE in the ZEBRA manual

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                 | CALL GREND (CHDIR) |
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CHDIR

Name of the RZ top directory (See RZEND in ZEBRA manual).