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I just want to run a .js script against a particular mongodb database, but can't seem to get the correct syntax.
echo "print(db.address.find().limit(1));" > test.js
mongo test.js
How do I select the database that this will be executed on, I've tried various combinations of use foo with no success.
> show dbs
admin (empty)
local (empty)
foo 0.203125GB
bar 0.203125GB
I would like to use foo in this case.
692
In MongoDB, you can use the show dbs command to list all databases on a MongoDB server. This will show you the database name, as well as the size of the database in gigabytes. You can select any database using the use statement and work on it.
Load JavaScript file js file from mongo shell, using the load() function. load() function allow to execute from absolute and relative paths. We can simply load a file in mongo shell with load() function. And Finally If we have lots of scripted files, We can load() inside another javaScript file.
The MongoDB Node. js Driver allows you to easily interact with MongoDB databases from within Node. js applications. You'll need the driver in order to connect to your database and execute the queries described in this Quick Start series.
mongo <name of db> --eval "db.runCommand( <js in here> );"
Or if you dont have a specific runCommand script, you can just do:
mongo <name of db> --eval "<js in here>;"
If you are using a return value:
mongo <name of db> --eval "db.eval('return fnName()')"
For a file
mongo <name of db> some_instructions.js
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