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I am currently trying to figure out if it is possible to run multiple commends within one line on a rails console through Unix shell or within a ruby script.

For Example:

exec('echo p = Product.first;b = Billing.first|rails c')

When I tried something similar to the example, it would always try to execute the two commands before launching console.

Hope this make sense and appreciate any help I can get.

Thanks in advance!

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  • You might consider making a rake task for this. It's a little more idiomatic. Commented Oct 28, 2015 at 6:45
  • Answer to your literal question: more quotes. But it's really a strange thing to do, executing rails console from shell from ruby, almost certainly an XY problem. Commented Oct 28, 2015 at 6:46
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    Possible duplicate of Pass ruby script file to rails console Commented Oct 28, 2015 at 6:47

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Yes you can do this

From a unix shell prompt:

echo 'p = Product.first; b = Billing.first' | rails c

From the rails console itself, or a ruby script I guess:

exec(%Q{echo 'p = Product.first; b = Billing.first' | rails c})

It's probably worth asking why you want to do this though. Could you use a rake task?

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2 Comments

Thanks for the quick reply! I haven't tried writing my own rake task before but it is something I should explore. I was just kind of messing around do to my curiosity. Thanks again everyone for all the help!
My use case is to run essentially one-time-use commands, and the first code line is working well for me.

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