Questions with a significant Perl content are encouraged. Other questions, such as this one, are allowed but should be marked Off Topic:(OT) in the title.

Thanks for the explanation. Will remember for the future.

I though about it and I will extract the reports as the are and create the wanted report with Perl. But I still not sure how to do it.
It feels like I need to iterate through the inner array and then through the outer array.
Can you suggest an efficient way to do this? Will update my post.

Can you post the perl script and source data files that you used to create the report shown on you original post ? i.e.

{                                                      
    "name": "test1",  
    "all_data": [                                         
        {                                              
            "sub_data": [                                  
                {                                      
                    "sub_name": "Test1",               
                    "sub_path": "GROUP1/Test1",        
                    "info": [          
                        {                              
                            "group": "pkgs",            
                            "values": [              
                                "tcsh"                 
                            ]                          
                        },                             
                        {                              
                            "group": "tcsh",            
                            "values": [              
                                "6.13.00"              
                            ]                          
                        }                              
                    ]                                  
                },                                     
                {                                      
                    "sub_name": "GROUP2",              
                    "sub_path": "GROUP2",              
                    "info": [          
                        {                              
                            "group": "pkgs",            
                            "values": [              
                                "tcsh"                 
                            ]                          
                        },                             
                        {                              
                            "group": "tcsh",            
                            "values": [              
                                "6.13.00"              
                            ]                          
                        }                              
                    ]                                  
                },                
            ],                                         
            "all_data_name": "ROOT",                       
            "all_data_path": "/PATH/TO/ROOT"
        }
    ],
    "username": "erwerwcsd",
    "timestamp": "1564475903"
}
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poj