Finding Documents using Operators

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The MongoDB shell provides the following methods to find documents using operators:

Operator	Description	Commands
$gt	greater than	db.docx.find({class:{$gt:'T'}
$gte	greater than equals	db.docx.find({class:{$gt:'T'}
$lt	lesser than	db.docx.find({class:{$lt:'T'}
$lte	lesser than equals	db.docx.find({class:{$lte:'T'}
$exists	does an attribute exist or not	db.docx.find({class:{$gt:'T'}
$regex	Matching pattern in pearl-style	db.docx.find({name:{$regex:'^USS\\sE'}})
$type	search by type of an element	db.docx.find({name : {$type:4}})

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