Call bash script in Java program with export variables

Question

I need to call a bash script in java class . Before calling the bash script , few variables need to be exported. So when bash script is executed. It's should get the required exported values.

class Javapgm {

public static void main(String [] args){

//export VAR=10

//Call bash script script.bash so that it can use this VAR

}

Andreas · Accepted Answer · 2019-03-02 02:19:30Z

3

To execute a bash script, use ProcessBuilder.
To set environment variables, call environment().

ProcessBuilder pb = new ProcessBuilder("/bin/sh", "-c", "script.bash");
pb.inheritIO();
pb.environment().put("VAR", "10");
Process p = pb.start();
p.waitFor();

answered Mar 2, 2019 at 2:19

Andreas

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