jq
https://www.linode.com/docs/guides/using-jq-to-process-json-on-the-command-line/
Pretty print
Just pipe it
terraform show -json|jq
Or to pretty print file:
jq '.' menu.json
Filtering
To access a particular property within a JSON record, use the .field
operator:
terraform show -json|jq '.values.root_module.child_modules'
To view a specific entry within an array, specify the index of the item within
the []
operator:
terraform show -json|jq '.values.root_module.child_modules[0]'
To access an array nested deeper within a JSON file, first use the field operator to extract the array object. Pipe the result to the [] operator:
jq '.values.root_module.child_modules[0].resources|.[].values.private_key_pem' tt1.json
null
null
null
null
null
"-----BEGIN RSA PRIVATE KEY-----\nMIIJK...\n-----END RSA PRIVATE KEY-----\n"
To get the last element of the array use index -1:
jq '.values.root_module.child_modules[0].resources[-1].values.private_key_pem' tt1.json
You can also “slice” the array to show only a portion of it:
[first:last]
. The first is inclusive, while the last is exclusive.
E.g. to display the first two items of an array, use [0:2]
.
Sorting
Simple sort by key:
jq --sort-keys < foo.json
Extract container environment and sort it.
sudo docker inspect cc43cbfa4153|jq ".[0].Config.Env|sort[]"