Cannot call perl script from Java

Question

When I'm trying to run a perl script from my main java application:

            try {
                ProcessBuilder pb = new ProcessBuilder(path+"\\script.pl");
                Process p = pb.start();     // Start the process.
                p.waitFor();                // Wait for the process to finish.
                System.out.println("Script executed successfully");
              } catch (Exception e) {
                e.printStackTrace();
                }

            }

I get the following error (not a valid win32 app):

java.io.IOException: Cannot run program "C:\workspace\kepler\Alert_Handler\target\test-classes\script.pl": CreateProcess error=193, %1 no es una aplicación Win32 válida at java.lang.ProcessBuilder.start(Unknown Source)

possible duplicate of Using Runtime.getRuntime().exec() to run perl code in java — Saurabh
– Saurabh, Commented Nov 11, 2014 at 19:53

Community · Accepted Answer · 2017-05-23 11:49:39Z

1

Unix uses the shebang line to indicate a file is executable, but Windows uses a different mechanism based on file extensions. The file extensions Windows considers executable are those enumerated by the PATHEXT environment variable. You can solve your program by altering your PATHEXT variable as detailed here.

Alternatively, you could explicitly specify you want to launch the script using perl.

new ProcessBuilder("perl.exe", path+"\\script.pl");

- ikegami

edited May 23, 2017 at 11:49

CommunityBot

11 silver badge

answered Nov 11, 2014 at 20:40

user4241250

111 bronze badge

Sign up to request clarification or add additional context in comments.

Comments

Oncaphillis · Accepted Answer · 2014-11-11 20:14:42Z

0

Ok -- my mother-tongue isn't spanish but this

no es una aplicación Win32 válida

Seems to translate into "this isn't a valid Win32 application" so it seems under Windows you explicitly have to start the Perl interpreter with the script as an arg. Something like:

new ProcessBuilder("perl.exe",path+"\\script.pl");

may be ?

answered Nov 11, 2014 at 20:14

Oncaphillis

1,91813 silver badges15 bronze badges

Collectives™ on Stack Overflow

Cannot call perl script from Java

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related