Export environment variables to JSON in Bash

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The environment variables can be printed by using export or printenv in bash, but how can we convert the output into JSON format and then store them in a variable.

jq environment-variables bash json
1 Answers

JQ does that for you and populates an internal variable called ENV with the result, which can be stored in a shell variable like so:

var=$(jq -n '$ENV')

And to remove junk variables such as _, SHLVL, etc. from the list, you can use JQ's del function.

var=$(jq -n '$ENV | del(._, .SHLVL)')
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