jq name of title as new column on table [duplicate] - json

Question

I want print "/" separator inside output title.
curl -s http://cd0a4a.ethosdistro.com/?json=yes \
| jq -c '.rigs|."0d6b27",."50dc35"|[.version,.driver,.miner,"\(.gpus)\(.miner_instance)"]|#csv' \
| sed 's/\\//g;s/\"//g' \
| gawk 'BEGIN{print "version" "," "GPU_driver" "," "miner" "," "gpu"} {print $0}' \
| csvlook -I
The output is like this :
| version | GPU_driver | miner | gpu |
| ------- | ---------- | -------- | --- |
| 1.2.3 | nvidia | ethminer | 22 |
| 1.2.4 | amdgpu | ethminer | 11 |
But I want separator in between the numbers inside gpu title like this :
| version | GPU_driver | miner | gpu |
| ------- | ---------- | -------- | ---- |
| 1.2.3 | nvidia | ethminer | 2/2 |
| 1.2.4 | amdgpu | ethminer | 1/1 |

Answer 1

You're doing a lot of unnecessary calls just to process the data. Your commands could be drastically simplified.
You don't need to explicitly key into the .rigs object to get their values, you could just access them using [].
You don't need the sed call to strip the quotes, just use the raw output -r.
You don't need the awk call to add the header, you could just output an additional row from jq.
So your command turns into this instead:
$ curl -s http://cd0a4a.ethosdistro.com/?json=yes \
| jq -r '["version", "GPU_driver", "miner", "gpu"],
(.rigs[] | [.version, .driver, .miner, "\(.gpus)/\(.miner_instance)"])
| #csv' \
| csvlook -I

Answer 2

Since you already use string interpolation for that specific field, simply include the character you need (slash /) inside the string, like this:
curl ... | jq -c '... [.version,.driver,.miner,"\(.gpus)/\(.miner_instance)"] ...'
In your case (the complete line):
curl -s http://cd0a4a.ethosdistro.com/?json=yes | jq -c '.rigs|."0d6b27",."50dc35"|[.version,.driver,.miner,"\(.gpus)/\(.miner_instance)"]|#csv' | sed 's/\\//g;s/\"//g' | gawk 'BEGIN{print "version" "," "GPU_driver" "," "miner" "," "gpu"} {print $0}' | csvlook -I

Answer 3

Here are some suggestions for simplification:
use the --raw-output option to jq to remove extraneous back-slashes
there is no need to remove the quotes, csvlook does it for you
no need for awk to add a title line, use a sub-shell
no need to specify rigs implicitly, use .[]
Here is an example:
(
echo version,GPU_driver,miner,gpu
curl -s 'http://cd0a4a.ethosdistro.com/?json=yes' |
jq -r '
.rigs | .[] |
[ .version, .driver , .miner , "\(.gpus)/\(.miner_instance)" ] |
#csv
'
) |
csvlook
Output:
|----------+------------+----------+------|
| version | GPU_driver | miner | gpu |
|----------+------------+----------+------|
| 1.2.3 | nvidia | ethminer | 2/2 |
| 1.2.4 | amdgpu | ethminer | 1/1 |
|----------+------------+----------+------|