Thanks for your complete answer! I used the inline_template method which is
good enough for me
On Friday, December 14, 2012 3:17:24 PM UTC+1, jcbollinger wrote:
>
>
>
> On Thursday, December 13, 2012 9:48:44 AM UTC-6, Sven vd wrote:
>>
>> This works when using the variable inside a template.
>>
>> But I want to use the variable in an Exec command. How to remove the
>> newline here? .chomp does not seem to work here.
>>
>
>
> No, it wouldn't. The 'chomp' is a method of Ruby's String class. It
> works in the embedded Ruby context in a template, but it is not part of the
> Puppet DSL, so it does not work for ordinary variable interpolation.
>
> The underlying problem is that the generate() command you are using is
> outputting a trailing newline that gets incorporated into the resulting
> value. That's not too surprising, as it is good form for programs (such as
> whatever external command you are running) to terminate their output with a
> newline.
>
> You have two main options:
>
> 1. Modify the command in some way or filter its output to remove the
> newline before it reaches Puppet
> 2. Remove the newline inside Puppet
>
> I leave you to figure out (1) on your own. You have multiple approaches
> available for (2). The easiest built into Puppet is to use a template,
> probably via the inline_template() function:
>
> $result_line = generate('my command')
> $result = inline_template('<%= @result_line.chomp %>')
>
> That's a little ugly, though. If you have or are willing to install
> Puppetlabs' "stdlib" add-on module, then it provides a chomp() function in
> Puppet. With that, you could replace the second line above with:
>
> $result = chomp($result_line)
>
> Note well that Puppet variables can only be assigned values once each.
> That's why my examples use two variables ($result_line and $result).
>
>
> John
>
>
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