In this example, the histograms in an existing HBOOK file are moved in a new HBOOK file in two separated directories according to their type.

Histogram archiving and directories into HBOOK files
                                               
1     HISTOGRAM/FILE 0 pawtut.hbook                                                                              
      hi/li                                                                                                             
      hrin  *                                                                                                           
      close 1                                                                                                           
2     HISTOGRAM/FILE 0 pawtutnew.hbook ! N                                                                       
3     MDIR 1Dhistograms                                                                                          
3     MDIR 2Dhistograms                                                                                          
      ldir                                                                                                              
      cd 1Dhistograms                                                                                                   
4     HROUT 514,30001,60202                                                                                      
      ldir                                                                                                              
      cd //LUN1/2Dhistograms                                                                                            
4     HROUT 8001,1103,11,12                                                                                      
      ldir                                                                                                              
      close 1                                                                                                           

1. Attach an existing HBOOK file.
2. Create a new HBOOK file.
3. Create two subdirectories in the file pawtutnew.hbook .
4. Store the 1d and 2d histograms in two separated directories. Note that the ``Loop'' facility is used again here.

Output of LDIR
                                                                                            
 ===> Directory :                                                                                                       
         10 (N)   CERN Population                                                                                       
        514 (1)   Angular density                                                                                       
      30001 (1)   mix                                                                                                   
      60202 (1)   p dy like                                                                                             
       8001 (2)   Data (gluino)                                                                                         
       1103 (2)   Charged particle theta vs. phi                                                                        
         11 (2)   PHI VS. Y  +VE    WEIGHTED                                                                            
         12 (2)   PHI VS. Y  +VE    WEIGHTED                                                                            
                                                                                                                        
 ************** Directory ===> //LUN1 <===                                                                              
                                                                                                                        
                  Created 930602/1428  Modified 930602/1428                                                             
                                                                                                                        
                                                                                                                        
 ===> List of subdirectories                                                                                            
 1DHISTOGRAMS     Created 930602/1428 at record     3                                                                   
 2DHISTOGRAMS     Created 930602/1428 at record     4                                                                   
                                                                                                                        
 ===> List of objects                                                                                                   
     HBOOK-ID  VARIABLE                             CYCLE    DATE/TIME   NDATA                                          
                                                                                                                        
 ************** Directory ===> //LUN1/1DHISTOGRAMS <===                                                                 
                                                                                                                        
                  Created 930602/1428  Modified 930602/1428                                                             
                                                                                                                        
                                                                                                                        
 ===> List of objects                                                                                                   
     HBOOK-ID  VARIABLE                             CYCLE    DATE/TIME   NDATA                                          
        514         0                                   1   930602/1428    153                                          
      30001         0                                   1   930602/1428    200                                          
      60202         0                                   1   930602/1428    152                                          
                                                                                                                        
 ************** Directory ===> //LUN1/2DHISTOGRAMS <===                                                                 
                                                                                                                        
                  Created 930602/1428  Modified 930602/1428                                                             
                                                                                                                        
                                                                                                                        
 ===> List of objects                                                                                                   
     HBOOK-ID  VARIABLE                             CYCLE    DATE/TIME   NDATA                                          
       8001         0                                   1   930602/1428    537                                          
       1103         0                                   1   930602/1428   5361                                          
         11         0                                   1   930602/1428    444                                          
         12         0                                   1   930602/1428  13114