remove function, return something

[Jean Carlo]

Is there a way to confirm, in a shell script code, that a  remove command has removed data?

I have the following bash code

query="db.external_outbox_received_history.remove({ \"exp_date\":{\"\$lte\":1351987200000,\"\$gte\":1351814400000}})"

host="hostname"

db="database"

port=23234

return=`mongo ${host}:${port}/${db} --eval "$query" `

how can I see that the data was in fact removed or something wrong happened and the data could not be removed?

maybe something like this

//pseudo code

if(return==true)

    success

else

    handler

fi

[Jean Carlo]

If someone need the same information, we need to parse the information of getLastError of mongo 

=)  happy coding