MongoDB How to export data to CSV or TXT format

Example:

--Export CSV format:

Mongoexport-h 192.168.6.52--port 8000--username root--csv--password mongo123--collection a--fields _id--out/do Wnload/a.csv--db dba--authenticationdatabase admin--query ' {_id:1} '

--Export TXT format:

(Do not specify--csv).

Mongoexport-h 192.168.6.52--port 8000--username root--password mongo123--collection a--fields _id--out/download /a.txt--db dba--authenticationdatabase admin--query ' {_id:1} '

--fields refers to the field you want to export, such as this is _id.

-query partial data can be exported conditionally

--This article mainly refers to from: http://www.4wei.cn/archives/1002262,http://blog.163.com/dazuiba_008/blog/static/363349812012810101055591/