Jq: escape chars

[edap]

How can I escape "$" char?
I'm trying to parse the youtube apis, getting this _media$group_
This work

  curl 'https://gdata.youtube.com/feeds/api/standardfeeds/IT/most_recent_Sports/?v=2&alt=json' | jq' .feed.entry[] | {title}'

This is not working:

  curl 'https://gdata.youtube.com/feeds/api/standardfeeds/IT/most_recent_Sports/?v=2&alt=json' | jq' .feed.entry[] |  {media$group}'

[scheibo]

Along the same lines - I'm getting errors when the keys I'm trying to query for have '.' or ':' in them - ie/ 'foo.bar.baz:8008' is a key I'm trying to pull out out some JSON.

[stedolan]

You can use the following syntax:

jq '.feed.entry[] | {"group": .["media$group"]}'

The {foo} syntax is shorthand for this, but you need to use the longhand version if there are unusual characters in the field name.

[edap]

ok, thanks for your answer

[stedolan]

Now (if you build master) you can use:

jq '.feed.entry[] | {"media$group"}'

[theoreticaLee]

Yeah, it would be great to add in escaping ability. I'm running into trouble with facebook's api as some results have keys with forward slash in them :/

[stedolan]

@theoreticaLee you can use keys with slashes, but you'll have to use explicit strings as the keys:

jq '.slash/key' won't work, but jq '.["slash/key"]' will.
jq '{slash/key}' won't work, but jq '{"slash/key"}' will.

[Jean-Baptiste-Lasselle]

@theoreticaLee you can use keys with slashes, but you'll have to use explicit strings as the keys:

jq '.slash/key' won't work, but jq '.["slash/key"]' will.
jq '{slash/key}' won't work, but jq '{"slash/key"}' will.

honestly love that one : just so useful today, using hashicorp vault api...

[v6dou]

@Jean-Baptiste-Lasselle I'm dealing with the same thing, in the list of accessors at sys/auth

[v6dou]

None of the above solutions worked, I had to generate a jqparams.txt file using a "heredoc" and put environment variables in it, then pass that using jq --from-file jqparams.txt.

Would be nice to see this program play better with bash primitives.