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Introduction

• Users frequently find the situation that jobs in a workflow pass variables to subsequent jobs.

• This can easily be achieved by appending a pair of name/value for the variable to a temporary file that is offered by the JS7_RETURN_VALUES environment variable like this:
  
  

  Code Block
  language bash title Example how to pass a variable to subsequent jobs with Unix
  MY_VAR="some text" echo "my_variable=$MY_VAR" >> $JS7_RETURN_VALUES

  Code Block
  language bash title Example how to pass a variable to subsequent jobs with Windows
  set MY_VAR=some text echo my_variable=%MY_VAR% >> %JS7_RETURN_VALUES%

  
  Explanation:

  • A variable my_variable is passed as an order variable to subsequent jobs and instructions in a workflow.
  • The variable can be assigned a constant value or a value from some environment variable as e.g. MY_VAR that holds some arbitrary value.
• However, there are two limitations about this approach:
  • The length of values for environment variables is limited, the precise max. size of environment variables is OS dependent.
  • If the value of the variable includes special characters such as carriage return, newline, linefeed then this might break depending on capabilities of environment variables in the OS.

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