MongoDB Execute script to initialize

Sometimes, when initializing the data, the number of command bars is too many, directly copy the INSERT statement, paste into the command line execution, very slow (time all spent on the paste above), so put the statement into the script to execute, more convenient. If, with the JS script, do not recognize the use database name, will be error: syntaxerror:unexpected identifier at a.js.

So, here's a 4.sh script, the script content:

Use DBA;
Db.a.insert ({"_id": 8});
Use DBA2;
Db.a.insert ({"_id": 8});

Execute script:

Mongo-u root-p 123456--authenticationdatabase admin--port 8000 < 4.sh > 4.log

>4.log refers to generating a log file.

4.log as follows:

MongoDB Shell version:2.6.9
Connecting To:127.0.0.1:8000/test
Switched to DB DBA
Writeresult ({"ninserted": 1})
Switched to DB DBA2
Writeresult ({"ninserted": 1})
Bye