how to remove the documents of mongo database from shell script file

Question

I would like to remove some documents of mongo database from shell script file by using some query.

I use the following command, but this doesn't work.

mongo dbName --eval "db.collection.remove({"param1":"value"})"

How should I delete the documents from mongo database from shell script by command line ??

I beleive it is your use of ", the bash script is being confused, try something like "db.collection.remove({param1:'value'})" — Sammaye
– Sammaye, Commented Jan 10, 2014 at 9:05

Derick · Accepted Answer · 2014-01-10 10:19:28Z

6

Your command line use both double quotes for shell strings, as well as string delimiters in the string itself. This causes confusion to the shell. You can either escape your " in the string:

mongo dbName --eval "db.collection.remove({\"param1\":\"value\"})"

Or use single quotes, like:

mongo dbName --eval 'db.collection.remove({"param1":"value"})"'

I would suggest you use single quotes around the whole string, instead of using single quotes in the string, as this also means that strings that contain an $ are not interpolated or cause other issues.

answered Jan 10, 2014 at 10:19

Derick

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