MongoExport for field name where field name is not null - mongodb

I have tried running the shell command:
mongoexport -d=local_db -c=ColName -q= '{ "FieldName":{"$ne":"null"}}' --out=NameofJson.json --jsonArray
But I return the error:
too many positional arguments: ['{ FieldName:{$ne:null}}']
What is the correct Syntax?

Get rid of the extra whitespace after -q:
-d=local_db -c=ColName -q='{ "FieldName":{"$ne":"null"}}' --out=NameofJson.json --jsonArray

If you are processing this in Linux please see Buzz Moschetti's answer. In windows the command was:
mongoexport -d=local_db -c=ColName -q="{ 'FieldName':{'$ne':null}}" --out=NameofJson.json --jsonArray

Related

mongodump showing error: Error parsing command line: too many positional options

mongodump:
--host hostname:port -u User -p password--authenticationDatabase admin --dbdb_name --collection collection_name –q {db.getCollection('col_name').find({"statement.context.platform":"abc","statement.timestamp":{'$gte':'2016-03-30T00:00:00','$lte':'2016-04-20T23:59:59'}})}"
Error:
Error parsing command line: too many positional options
Mongodb version- 2.6
Spaces between arguments are not correct
https://docs.mongodb.com/manual/reference/program/mongodump/#cmdoption--query says:
You must enclose the query in single quotes (e.g. ') to ensure that it does not interact with your shell environment.
and your query doesn't have starting qoute, but it ends with double quote.
Hope that this helps.

MongoDB: Issue when using mongoexport with --query option

When I try to take backup with mongoexport using the --query option to get the documents whose status is equal to A, facing the below error:
mongoexport --port 27017 --db ex --collection A --type=csv --fields _id,status --query '{"status":"A"}' -o eg.csv
error validating settings: query ''{status:A}'' is not valid JSON
Please let me know how to use --query option.
Assuming you run this from the DOS command prompt, you need to swap the single and double quotes. You need to wrap the entire query in double quotes and use single quotes inside the JSON document like this:
--query "{'status':'A'}"
I have tested this with mongoexport version 3.0.0 and 3.2.0 and it works for both versions.

Getting an assertion error in mongoexport command in Mongodb.

I am getting an error after executing this command:
mongoexport --db records --collection source_list --csv --out C:\bcopy.csv
record is my DB n source_list is my collection
It displays this message:
assertion: 9998 you need to specify fields
I also tried to specify fields but it is giving me the same error.
What changes should i make in the command to get a backup of my collection or is there any other way to do so ?
Here's sample command that specifies fields to export:
mongoexport -h 127.0.0.1 --port 27018 --db mydb --collection system.profile --csv --out profile.csv --fields ns,millis,numYield,nscanned
In my case --headerline helped. I had around 60 columns, enumerating them with -f would be quite cumbersome.
--headerline
If using “--type csv” or “--type tsv,” use the first line as field names. Otherwise, > mongoimport will import the first line as a distinct document.
Seems like you should be using -f paramater to choose the fields that will be exported to csv file. There is a bug reported for this case to change the explanation as the error message is not informative enough.
https://jira.mongodb.org/browse/SERVER-4224

Command fails in script, works in command line

I have a simple script to get an export from MongoDB:
#!/bin/sh -x
QUERY="'{ \"type\":\"listing\" }'"
mongoexport --db event --collection listing --query $QUERY --fields type,name --csv
(I'm using the -x switch for debugging purposes)
Here's the output when I run the script:
$ ./simple_query.sh
+ QUERY='{ "type":"listing" }'
+ mongoexport --db event --collection listing --query '{ "type":"listing" }' --fields type,name --csv
ERROR: too many positional options
However, if I merely copy and paste the mongoexport line to the prompt, it works! What's going on?
(Using MongoDB 2.0.0)
Are you using older version of mongodb? If so maybe it's this bug. It is fixed on 2.0.0-* versions.
Edit: Actually this might be different problem. You can fix it by removing the spaces on the query. Spaces seem to make the shell think it is actually multiple arguments:
QUERY="'{\"type\":\"listing\"}'"

What does "too many positional options" mean when doing a mongoexport?

mongoexport -h db.mysite.com -u myUser -p myPass -c myCollection
But the response I get is:
ERROR: too many positional options
What's that about?
I had this same problem. In my case, I was using mongoexport with the --query option, which expects a JSON document, such as:
mongoexport ... --query {field: 'value'} ...
I needed to surround the document with quotes:
mongoexport ... --query "{field: 'value'}" ...
I had the same problem. Found a group post somewhere which said to remove the space between the '-p' and the password, which worked for me.
Your sample command should be:
mongoexport -h db.mysite.com -u myUser -pmyPass -c myCollection
The same error I have encountered while importing a csv file.
But its just, the fact that the field list which you pass for that csv file import may have blank spaces.
Just clear the blank spaces in field list.
Its the parsing error.
I had the same issue with mongodump. After searching a bit, I found out that using the --out parameter to specify the output directory would solve this issue. The syntax for using the out parameter is
mongoexport --collection collection --out collection.json
Also in case your Mongodb instance isn't running, then you could use the --dbpath to specify the exact path to the files of your instance.
Source: http://docs.mongodb.org/manual/core/import-export/
I had the same issue with the mongoexport utility (using 2.0.2). My fix was to use the FULL parameter name (i.e. not -d, instead use --db).
Sometimes editor will screw it up (such as evernote). I fixed the issue by retyping the command in terminal.
I was also stuck in same situation and found what was causing it.
Make sure you are exporting in CSV format by adding parameter --type csv
Make sure there are no spaces in fields name,
Example: --fields _id, desc is wrong but --fields id,desc,price is good
This also works if you place the -c option first. For me, this order does work:
mongoexport -c collection -h ds111111.mlab.com:11111 -u user -p pass -d mydb
You can also leave the pass out and the server will ask you to enter the pass. This only works if the server supports SASL authentication (mlab does not for example).
for the (Error: Too many arguments)
Dont Use Space Between the Fields
try:
mongoexport --host localhost --db local --collection epfo_input --type=csv --out epfo_input.csv --fields cin,name,search_string,EstablishmentID,EstablishmentName,Address,officeName
Dont_Try:
mongoexport --host localhost --db local --collection epfo_input --type=csv --out epfo_input.csv --fields cin,name,search_string,Establishment ID,Establishment Name,Address,office Name
Had a similar issue
$too many positional arguments
$try 'mongorestore --help' for more information
Simply fix for me was to wrap the path location in quotes " "
This Failed:
mongorestore -h MY.mlab.com:MYPORT -d MYDBNAME -u ADMIN -p PASSWORD C:\Here\There\And\Back\Again
This Worked:
mongorestore -h MY.mlab.com:MYPORT -d MYDBNAME -u ADMIN -p PASSWORD "C:\Here\There\And\Back\Again"
I had the same issue with starting mongod. I used the following command:
./mongod --port 27001 --replSet abc -- dbpath /Users/seanfoley/Downloads/mongodb-osx-x86_64-3.4.3/bin/1 --logpath /Users/seanfoley/Downloads/mongodb-osx-x86_64-3.4.3/log.1 --logappend --oplogSize 5 --smallfiles --fork
The following error message appeared:
Error parsing command line: too many positional options have been specified on the command line
What fixed this issue was removing the single space between the '--' and 'dbpath'
I had the same issue while using the "mongod --dbpath" command. What I was doing looked somewhat like this:
mongod --dbpath c:/Users/HP/Desktop/Mongo_Data
where as the command syntax was supposed to be:
mongod --dbpath=c:/Users/HP/Desktop/Mongo_Data
This worked for me. Apart from this one may take a note of the command function and syntaxes using the mongod --help command.
In my case, I had to write the port separately from the server connection. This worked for me:
mongoexport --host=HOST --port=PORT --db=DB --collection=COLLECTION
--out=OUTPUT.json -u USER -p PASS
Create a json file in the same folder where you have your mongod.exe.
eg: coll.json
and open a command prompt in this folder.
type this below in CMD.
mongoexport --db databasename --collection collectionname --out
coll.json
and you will see like a progress bar very cool exporting all data.