Shebang script with arguments


#1

Hello…

I have a shebang script for jruby, and I need to change the java heap
space
in it. How do I do that? Is it possible?

Doing:

#!/usr/bin/env jruby -J-Xmx1024m

does not work.

I´ve seen a suggestion, that for Python the best would be to add the
parameter to a shell variable. Can this be done for JRuby?

Thanks a lot…


#2

POSIX doesn’t generally allow more than one argument (other than the
interpreter name itself) to be passed as part of a shebang, so even if
your operating system supports this, it won’t be portable: You’ve
already filled that one position with “jruby”, since slot 0 is “env”.

On Mon, Mar 30, 2015 at 3:55 PM, Rodrigo B.


#3

So, can I use shell variables? Any other solution? Any ideas?

Thanks,

2015-03-30 18:05 GMT-03:00 Charles D. removed_email_address@domain.invalid:


#4

Does JRUBY_OPTS helps in this case? How do I use this?

2015-03-30 18:12 GMT-03:00 Rodrigo B.
removed_email_address@domain.invalid:


#5

You can have a second script that executes JRuby with the arguments you
want, and use that in the shebang line.

Chris