How to send line break with curl?

Question

I\'ve tried the following to send a line break with curl, but \\n is not interpreted by curl.

curl -X PUT -d \"my message\\n\" http://localhost:         


        

Answer 1

(I ended up here with a slightly different question, so I'm just going to post my answer because it might help future explorers)

My solution applies to people who are sending form-style data, i.e. key/value pairs in a query string. Use the encoded line break, which is %0A, just like how an encoded space is %20. You can use http://meyerweb.com/eric/tools/dencoder/ to convert other symbols.

So if you want to set the key message to the value:

line one
another

you would send

curl --data "message=line%20one%0Aanother" http://localhost:8000/hello