how can I put parameters in ElasticSearch curl post

Question

The following is my linux shell code for insert one record to ElasticSearch:

username="Tom"
curl -XPOST 'http://192.168.0.1:9200/userdb/info/1' -d '{"user":$username}'

But it didn't work, it treated $username is a string not a variable. How can I fix this please?

Val · Accepted Answer · 2016-05-13 06:05:01Z

3

You need to enclose $username in double quotes since it's a string. That will work.

username="Tom"
curl -XPOST 'http://192.168.0.1:9200/userdb/info/1' -d "{\"user\":\"$username\"}"
                                                       ^           ^         ^  ^
                                                       |           |         |  |
                                                     here         here  and  here

edited May 13, 2016 at 6:05

answered May 13, 2016 at 5:56

Val

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5 Comments

Jack Over a year ago

It doesn't work, when I search it ,the result is :"_source":{"user":"$username"}, it didn't treat $username as a variable.

Val Over a year ago

Strange, it works perfectly for me when in try in my shell. What kind of shell do you have?

Jack Over a year ago

I'm using #!/bin/bash

Val Over a year ago

Oh you need double quotes all the way, otherwise the variable doesn't get expanded. See my answer and try again.

Jack Over a year ago

thank you so much, it works now. You are Linux and ES master :-)

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