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I am trying to have RVM and ruby installed in an Ubuntu 12 virtual machine without human interaction apart from the password prompts.

I created a shell script to do this that works pretty fine until I need to use RVM itself.

I am using multi-user installation.

#!/bin/bash -l mainUser=`whoami` echo "Installing as '${mainUser}'" echo "Installing git..." sudo -S apt-get install --yes curl git-core echo "Installing RVM..." \curl -L https://get.rvm.io | sudo bash -s stable echo "Adding ${mainuser} to RVM group..." sudo adduser $mainUser rvm newgrp rvm

From here things get weird.. I need to load dvm as a source. I want both my script to have this source and my user's bash_profile / bashrc. Anyway.. I know how to do it manually, but I can't have this done from the script. This is the last code I tried:

. "/usr/local/rvm/bin/rvm" rvm use ruby-head rubyVersion=`rvm list | awk '/ruby-head/{print x;print};{x=$0}' | sed -n '/ruby-head/{g;1!p;};h' | awk -F ' ' '{print $1}'` rubyTest=${rubyVersion}@test rvm use $rubyTest --create --default

The error I get is this:

test.sh: 7: /usr/local/rvm/bin/rvm: Syntax error: "(" unexpected (expecting "fi")

If I simply try to use the full path, like this:

rvm=/usr/local/rvm/bin/rvm $rvm use ruby-head rubyVersion=`$rvm list | awk '/ruby-head/{print x;print};{x=$0}' | sed -n '/ruby-head/{g;1!p;};h' | awk -F ' ' '{print $1}'` rubyTest =${rubyVersion}@test $rvm use $rubyTest --create --default

I get this error instead:

RVM is not a function, selecting rubies with 'rvm use ...' will not work.

I am clueless. Why can't I use /usr/local/rvm/bin/rvm?

Is there a way to execute source /etc/profile.d/rvm.sh for this user from the script?

I am not so good at shell script and Linux, so I appreciate any references and examples you could give.

Thanks!

UPDATE

I also tried:

source "/usr/local/rvm/scripts/rvm"

... and all it's variants. Same error: "RVM is not a function".

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  • did you try doing something like source ~/.rvm/scripts/rvm in your script? Commented Jun 23, 2014 at 18:32

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rvm is actually implemented as a shell function rather than an executable, which is why you can't just call /usr/local/rvm/bin/rvm itself.

Quoting you, "Is there a way to execute source /etc/profile.d/rvm.sh for this user from the script?"

Have you tried doing that? I had a somewhat similar install once where it didn't work properly from crontab (they have instructions on the site for that scenario, but we couldn't make them work), and I had to do almost exactly that -- source part of the profile.d for rvm.

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Hi Some Guy! Thanks. Yes, I tried executing from the script. The $PATH, for example, doesn't change for this user, so I do PATH="${PATH}:${rvm}" to accomplish that. But I am trying to have dvm working in the script first. Executing it from the script renders the same error "RVM is not a function". It doesn't make sense to me, that's why I am asking here, I must be missing something. I didn't know about RVM not being an executable, thanks for that.
It's actually a kind of funky hybrid executable/shell function, depending on what it needs to do. Some more info here: rvm.io/workflow/scripting
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RVM is not a function, selecting rubies with 'rvm use ...' will not work.

Above error is generated when rvm is not running and hence your terminal is not able to recognize it, as it tries to run it as a system command.

You may want to try this to run rvm through your shell script before calling rvm methods:

source ~/.rvm/scripts/rvm
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Thanks for the tip, but it won't work, as I said, this is a multi-user installation, not single-user. Also, as far as I understand, the line . "/usr/local/rvm/bin/rvm" is exactly the same as source "/usr/local/rvm/bin/rvm".
I guess you are right. Sorry didn't gave much attention to multi-user install
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I found out what is causing the issue.

I realised before that I would get errors in the lines with conditions in the script files, so I came across this page:

https://superuser.com/questions/552016/bash-script-not-found

As it happens, I was executing the script with the following command:

sh script.sh

Which means I was getting Dash instead of Bash.

To fix the issue I changed my code to have this:

PATH=$PATH:/usr/local/rvm/bin # Add RVM to PATH for scripting [[ -s "/usr/local/rvm/scripts/rvm" ]] && . "/usr/local/rvm/scripts/rvm" # Load RVM function

And then I executed like this:

bash script.sh

And voilà... RVM works again!

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