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• Use without quotes
  Assume var2 to hold the value: some value

  Input	$var2
  Output	some value
  JSON	"var": "$var"

  
  
  

• Use with double quotes
  Assume var2 to hold the value: some value

  Input	"$var2"
  Output	some value
  JSON	"var": "\"$var\""

  
  
  

• Use with constant values from double quoted values
  Assume var2 to hold the value: second value

  Input	"first value, $var2"
  Output	first value, second value
  JSON	"var": "\"first value, $var2\""

  
  
  

• Use with string concatenation from double quoted values
  Assume var2 to hold the value: second value

  Input	"${var2}first value"
  Output	second valuefirst value
  JSON	"var": "\"${var2}first value\""

  
  
  

• Use with constant values and single quoted values
  Assume var2 to hold the value: second value

  Input	"first, '$var2'"
  Output	first, 'second value'
  JSON	"var": "\"first, '$var'\""

• For variable names that include dots the name has to be specified within curly braces and has to be quoted with backticks.
  Within backticks any characters can be used expect for a backtick.

  Input	${`mail.smtp.host`}
  Output	mail.sos-berlin.com
  JSON	"var": "${`mail.smtp.host`}"