Prior to version 5.1, getLastError, db.getLastError(), or db.getLastErrorObj() could be used to get detailed information about the success or failure of write operations:

  mongo << host/port/user etc >> --quiet 
        --eval "db.ValidProducts.drop();printjson(db.runCommand( { getLastError: 1 } ));"

  {
    "connectionId" : 2869,
    "n" : 0,
    "syncMillis" : 0,
    "writtenTo" : null,
    "err" : null,
    "ok" : 1

}}

In MongoDB version 6.0, getLastError was removed and write commands often only return a boolean, instead of the detailed JSON output:

  mongosh << host/port/user etc >> --quiet 
          --eval "var drc = db.ValidProducts.drop(); printjson(drc)"
  false

This request is to restore the ability to get more detailed return documents from write operations.