jq is incredibly powerful and I'm using it more and more. Even better, there is a whole ecosystem of tools that are similar or work in conjunction with jq:
* jq (a great JSON-wrangling tool)
* jc (convert various tools’ output into JSON)
* jo (create JSON objects)
* yq (like jq, but for YAML)
* fq (like jq, but for binary)
* htmlq (like jq, but for HTML)
List shamelessly stolen from Julia Evans[1]. For live links see her page.
Just a few days ago I needed to quickly extract all JWT token expiration dates from a network capture. This is what I came up with:
fq 'grep("Authorization: Bearer.*" ) | print' server.pcap | grep -o 'ey.*$' | sort | uniq | \
jq -R '[split(".") | select(length > 0) | .[0],.[1] | gsub("-";"+") | gsub("_";"/") | @base64d | fromjson]' | \
jq '.[1]' | jq '.exp' | xargs -n1 -I! date '+%Y-%m-%d %H:%M:%S' -d @!
It's not a beauty but I find the fact that you can do it in one line, with proper parsing and no regex trickery, remarkable.
[1] https://jvns.ca/blog/2022/04/12/a-list-of-new-ish--command-l...
* jq (a great JSON-wrangling tool)
* jc (convert various tools’ output into JSON)
* jo (create JSON objects)
* yq (like jq, but for YAML)
* fq (like jq, but for binary)
* htmlq (like jq, but for HTML)
List shamelessly stolen from Julia Evans[1]. For live links see her page.
Just a few days ago I needed to quickly extract all JWT token expiration dates from a network capture. This is what I came up with:
It's not a beauty but I find the fact that you can do it in one line, with proper parsing and no regex trickery, remarkable.[1] https://jvns.ca/blog/2022/04/12/a-list-of-new-ish--command-l...