Question

i want to run a bash script with java ee / servlets .
I want it embedded in a web application , using tomcat 7 in a linux os.

Answer 1

1. Embed the script in the web application, at the root of the war file for example.

2. Get the path to the file once the application is deployed with:

   String scriptPath = getServletContext().getRealPath("/script.sh");

3. Run the script with the ProcessBuilder class:

   new ProcessBuilder("/bin/sh", scriptPath).start();

Note that the step 2 may fail if you servlet container doesn’t extract the content of the war file. In this case you’ll have to put the script as a resource available on the classpath, copy its content into a temporary file, and run the script there.