How do you pass arguments to JQ?
Passing arguments to JQ is done with –arg as shown below. Inside the filter, you can access a –arg with $ . In this case $foo returns bar . Note also in this example the -n flag which is used to tell JQ to not expect any JSON input.
Is JQ installed by default?
jq is not installed by default on all systems #10.
How do I run a JQ file in Windows?
HOW TO SETUP JQ ON WINDOWS
- Go into C:\Users\ and create a new folder called Bin.
- Place the downloaded file into the newly created Bin folder.
- Rename the file to “jq” (so the full name should be jq.exe)
- Click on the Windows Start menu, and type Edit the System Environment Variables, and hit Enter.
How do you use the jq command?
First, we begin by accessing the pages array and passing that array into the next filter in the command via a pipe. Then we iterate over this array and pass each object inside the pages array to the map function, where we simply create a new array with the contents of each object.
How to pass a JSON variable to JQ?
Another way to accomplish this is with the jq “–arg” flag. Using the original example: #!/bin/sh #this works *** projectID=$ (cat file.json | jq -r ‘.resource [] | select (.username==”[email protected]”) |.id’) echo “$projectID” [email protected] # Use –arg to pass the variable to jq.
How to update a JSON document using JQ?
Appologies if I’ve overlooked something very obvious; I’ve just found jq and am trying to use it to update one JSON value without affecting the surrounding data. I’d like to pipe a curl result into jq, update a value, and pipe the updated JSON to a curl -X PUT. Something like
How to change the value of a JSON file?
I have a json in which I want to modify a particular value but the terminal always displays the json with the modified value but it does not actually change the value in the particular file. Sample json: I want to change the value of address in the file itself but so far I’ve been unable to do so.
How to pass a bash variable to JQ?
For the record, another possibility would be to use jq’s env function for accessing environment variables. For example, consider this sequence of bash commands: Posting it here as it might help others. In string it might be necessary to pass the quotes to jq.