Java slick command line app?

Question

Hello Guys,

I want to make a slick java commandline app which doesnt include all the nasty "java -jar some.jar arguments"

instead, I would have it work just like

program -option argument

like any other commandline app. I use ubuntu linux, and it would be fine if it included a bit of .sh script or anything. I know I can just create a file with java -jar program.jar and do chmod +x file, afterwards I could run i with ./file, but then how can I pass the arguments to the program ?

Answer 1

Use

java -jar program.jar $1 $2 $3

to access 1st, 2nd and 3rd argument of the script.

Example from http://www.ibm.com/developerworks/library/l-bash2.html

#!/usr/bin/env bash

echo name of script is $0
echo first argument is $1
echo second argument is $2
echo seventeenth argument is $17
echo number of arguments is $#

---

Or, even better, do as @nos suggests:

java -jar program.jar "$@"

Answer 2

On Linux you can use binfmt.

Answer 3

If you're trying to be really slick and you are running on a platform that supports bash, you can hide the fact that you're using Java completely from the user by producing a self extracting archive.

Take a look at this post for some hints on how you to implement a self extracting archive.