Is there a shell one-liner to convert JSON to BSON?

Converting JSON to BSON

There's this C implementation that includes a Makefile called json2bson.c.

Converting BSON to JSON

The MongoDB project provides a tool called bsondump.

The bsondump converts BSON files into human-readable formats, including JSON. For example, bsondump is useful for reading the output files generated by mongodump.

Usage

$ bsondump collection.bson > collection.json

There's also this Ruby script I found called bson2json.rb to convert BSON to JSON as well.