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jsonopenwrt

jsonfilter with a special character

I want to use jsonfilter to read the required key from my json file.

My json file content is:

{
    "rootbin": "/bin"
}

I want to read the 'rootbin' key value, so I used the following jsonfilter command:

    cat test.json | jsonfilter -e @.rootbin
/bin

But I got an error related to the special characters when changing the key to 'root-bin' in the json file

cat test.json | jsonfilter -e @.root-bin
Syntax error: Invalid escape sequence
In expression @.root-bin
Near here ----------^

How to use jsonfilter with special characters?

Solution

  • I had same problem. Finally I found out that there is also another syntax: cat test.json | jsonfilter -e '@["root-bin"]

    It works for me.

    The help page of jsonfilter also refers to this page as allowed patterns https://goessner.net/articles/JsonPath/.