The output JSON is not valid JSON,

Describe the bug The output JSON is not valid JSON, the separator should be a comma, but its no there also its not enclosed by [ ]

{"total":"6.7Gi","used":"1.9Gi","free":"2.4Gi","available":"62Mi"}
{"total":"2.0Gi","used":"0B","free":"2.0Gi"}

To Reproduce Steps to reproduce the behavior:

1. Issued pxi command. free -mhw | pxi '(['','total', 'used','free','available'])=>({total,used,free,available})' --from ssv --to json
2. Error thrown or unexpected behavior.

{"total":"6.7Gi","used":"1.9Gi","free":"2.4Gi","available":"62Mi"}
{"total":"2.0Gi","used":"0B","free":"2.0Gi"}

Expected behavior

[
{"total":"6.7Gi","used":"1.9Gi","free":"2.4Gi","available":"62Mi"},
{"total":"2.0Gi","used":"0B","free":"2.0Gi"}
]

Desktop (please complete the following information):

• OS: Ubuntu 20.04
• Version (pxi --version): 0.37.0

Additional context

I think comma-separated JSON output should be the default mode.

[OptimBro]

Maybe you can achieve what you are looking for with the following?

free -mhw |
pxi "([total, used, free, available]) => ({total, used, free, available})" --from ssv |
awk '{print $0 ","}' |
sed '$ s/.$//' |
cat <(echo "[") - <(echo "]")

awk adds commas, sed removes the last comma, cat surrounds the stream with brackets.

Thank you so much ^^, really appreciate it.

[Yord]

Thanks for creating this magical stuff, I liked the way I can get and format the output of commands like dh, ls etc 👌😍

🙏 Thank you, I appreciate that.