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rated 0 times [ 3] [ 0] / answers: 1 / hits: 37313 / 3 Years ago, tue, june 8, 2021, 4:13:45

I want to create bash script that it converts output of other scripts (Normally simple text) in a valid json form. How can I do this ?

Example:

awk '/^Mem/ {printf("%u%%", 100*$3/$2);}' <(free -m)

command give me used memory. I want to get output in valid jason form.

Desired output:

 {“Memory”:”80”}

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answered 3 Years ago saucdisr · Accepted Answer

Here's an example for memory:

echo {"Memory":"$(awk '/^Mem/ {printf("%u", 100*$3/$2);}' <(free -m))"} > mem.json

Putting that new file name into json:

echo {"file":"$(ls mem.json)"} > filename.json

Or:

echo {"<paramName-here>":"$(<value-of-param-from-command-here>)"} > mem.json

When it gets more complicated than this, you can continue to write line by line or more likely build strings in a variable.