如何获取mongo命令生成平面文件 [英] How to get mongo command results in to a flat file

问题描述

如何将MongoDB命令的结果导出到平面文件

How do I export the results of a MongoDB command to a flat file

例如，如果我要将db.collectionname.find()放入平面文件中.

For example, If I am to get db.collectionname.find() into a flat file.

我尝试了db.collectionname.find() >> "test.txt"似乎无效.

推荐答案

您可以从命令行尝试以下操作

you can try the following from the command line

mongo 127.0.0.1/db --eval "var c = db.collection.find(); while(c.hasNext()) {printjson(c.next())}" >> test.txt

假设您有一个名为"db"的数据库在本地主机上运行，​​并且有一个名为"collection"的集合，这会将所有记录导出到一个名为test.txt的文件中

assuming you have a database called 'db' running on localhost and a collection called 'collection' this will export all records into a file called test.txt

如果要执行的脚本较长，还可以创建script.js文件 并使用

If you have a longer script that you want to execute you can also create a script.js file and just use

mongo 127.0.0.1/db script.js >> test.txt

我希望这对您有帮助

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