Running a java class file using unix syntax?

Question

I'm writing a script to validate I/O for contest problem solutions under a given directory for any of the following language types:

binary files (c, c++, etc.)
java classes
scripts (ruby, python, etc.)

I noticed the only one of the three above listed types that cannot be executed in a unix-style syntax ./program < sometest.in is Java. Obviously it's not difficult to simply check file extension in the script and replace above command with format java program < sometest.in, but it made me curious:

Is there a way to use unix-style syntax to run a Java class?

Matthias Herlitzius · Accepted Answer · 2013-04-28 14:48:10Z

2

You would need to wrap your Java class / JAR file into a little shell script:

#!/bin/sh

read input
java -jar program.jar $input

Make the file executable:

chmod a+x program

Use it as suggested in your question:

./program < sometest.in

answered Apr 28, 2013 at 14:48

Matthias Herlitzius

3,4252 gold badges23 silver badges20 bronze badges

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

Collectives™ on Stack Overflow

Running a java class file using unix syntax?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related