why #!/usr/bin/env ruby doesn't work in crontab?

Question

I have install ruby by rvm (system-wide), and worked correctly via normal console and my rails program is behaving correctly with both rails runner and ap

Answer 1

your cron isn't inheriting your environment. try echoing "$PATH" to a file to see what it's set to.

You could also just do "PATH=/usr/bin/ruby && foo.rb"