This is a command line tool to modify subproperties on disk or write to stdout.
modify.json 'the.nested.prop.you.want.to.modify'
By default this writes the JSON.stringify result to stdout. To modify the file on disk, use:
--disk
modify.json <file> <prop> true
modify.json <file> <prop> 'true'
modify.json <file> <prop> false
modify.json <file> <prop> "false"
modify.json <file> <prop> '""'
modify.json <file> <prop> '"true"'