[
    { "_id" : 0, "name" : "Betty Boop",
             "subjects" : [
                { "type" : "optional", "subject" : "Voice"},
                { "type" : "required", "subject" : "Math" },
                { "type" : "required", "subject" : "English" } ]
    },
    { "_id" : 1, "name" : "Donald Duck",
             "subjects" : [
                { "type" : "optional", "subject" : "Accounting" },
                { "type" : "required", "subject" : "Math" },
                { "type" : "required", "subject" : "English" } ]
    }
]


##</code><code>##

alias djson='perl -MData::Dumper -MJSON -MFile::Slurp -e"print Dumper decode_json read_file shift"'