How to increase number when converting json

Question

I am trying to increase the version field. entrance

{"version":1}

The way out should be

{"v":2}

When i do

echo '{"version":1}'|jq '{"v":.version+1}'

I get

error: syntax error, unexpected '+', expecting '}'

When added to string interpolation works

echo '{"version":1}'|jq '{"v":"\(.version+1)"}'

gives

{
  "v":"2"
}

I need v to be of type number.

+3

json bash shell jq

neurolabs 01 jul. 15 at 12:50

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2 answers

I think you need to escape with "+" (plus) with "\ +" and see. How:

echo '{"version":1}'|jq '{"v":.version\+1}'

0

Garry 01 jul. At 12:54 pm

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Rambo Ramon · Accepted Answer · 2015-07-01T13:01:09+0000

Try

echo '{"version":1}' | jq '{"v":(.version+1)}'

This works in the jq playground .