mongo shell --eval does not run

Question

For some reason I can't eval this simple string in mongo, I think it's because the $exists parameter.

mongo database --eval "db.products.find({'csv': {'$exists': false}}, {'original.name': true, 'original.sku': true})"

Blakes Seven · Accepted Answer · 2016-02-18 22:31:56Z

4

Your quotes are the wrong way around. Use ' on the wrapping of the statement rather than ". Just the important parts:

--eval 'db.products.find({ "csv": { "$exists": false } })'

answered Feb 18, 2016 at 22:31

Blakes Seven

50.5k14 gold badges132 silver badges136 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Juan Antonio Over a year ago

Is curious that wihtout '$exists' original format works fine.

Dario Seidl Over a year ago

@JuanAntonio When you use double quotes for the eval string, bash interpolates $ variables, so it looks for a variable with name exists, which doesn't exist. To prevent the interpolation, you can use single quotes. When you don't have any $ sign in your eval string, either single or double quotes will work.

Collectives™ on Stack Overflow

mongo shell --eval does not run

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related