Hi!

I try to run some Munin plugins written in Ruby. I would like to use RVM, so Munin needs to know where to find Ruby. I tried to change the line calling munin-cron in the cron file as follows:

*/5 * * * *     munin bash -c 'source /usr/local/lib/rvm && rvm 1.9.2@munin && /usr/bin/munin-cron'

This leads to error messages in munin-node.log, saying

/usr/bin/env: ruby: No such file or directory

When I change the plugins' shebangs to the actual path of the Ruby executable it works, but the RVM environment should be set so that '/usr/bin/env ruby' works. It does when I execute the plugins as root.

Any ideas?