- #!/bin/bash 
-   
- input="{ 
-   \"VariaB\": \"DONE\", 
-   \"VariaC\": \"DONE\", 
-   \"VariaD\": null, 
-   \"VariaE\": true 
- }" 
-   
- VariaA="ABCD" 
- VariaF="false" 
-   
- printf "{ 
-   \"VariaA\": \"$VariaA\", 
- %s 
-   \"VariaF\": $VariaF 
- }" "$(grep -v '[{}]' <<< "$input")" 
-   
				IyEvYmluL2Jhc2gKCmlucHV0PSJ7CiAgXCJWYXJpYUJcIjogXCJET05FXCIsCiAgXCJWYXJpYUNcIjogXCJET05FXCIsCiAgXCJWYXJpYURcIjogbnVsbCwKICBcIlZhcmlhRVwiOiB0cnVlCn0iCgpWYXJpYUE9IkFCQ0QiClZhcmlhRj0iZmFsc2UiCgpwcmludGYgInsKICBcIlZhcmlhQVwiOiBcIiRWYXJpYUFcIiwKJXMKICBcIlZhcmlhRlwiOiAkVmFyaWFGCn0iICIkKGdyZXAgLXYgJ1t7fV0nIDw8PCAiJGlucHV0IikiCg==