You can drop a database in MongoDB from the command line using db.dropDatabase() command or a one line shell script. Let’s see how to do this.

db.dropDatabase() command removes the current database, deleting the associated data files. This by default delete default ‘test’ database. If you have selected any database using use <db> command, then db.dropDatabase() command will drop that particular database.

You can do it in two ways.

Mongo console

> show dbs
admin      0.000GB
config     0.000GB
local      0.000GB
chat-bot  0.019GB
orders   0.000GB
> use orders
> db.dropDatabase()
{ "ok" : 1 }
> show dbs
admin      0.000GB
config     0.000GB
local      0.000GB
chat-bot  0.019GB

Command line as one line script

mongo <dbname> --eval "db.dropDatabase()"