On Thursday, July 23, 2015 at 7:13:46 PM UTC+5:30, jcbollinger wrote:
>
>
>
> On Thursday, July 23, 2015 at 2:27:03 AM UTC-5, Ayyanar wrote:
>>
>> 1." sed -i 's/\$\$HISTORY\$\$/puppet/' /etc/
>> system.com "
>>
>>
>> I want to replace a word $$HISTORY$$ with puppet text into /etc/
>> system.com file.
>>
>>
>
> You have to take care to perform proper quoting/escaping for sed, possibly
> to quote/escape the result for the shell (only if you are running the
> command via the shell), and then to quote/escape *that* result for
> Puppet. From sed's perspective, the program you want to run is
>
> s/$$HISTORY$\$/puppet/
>
> (The '$' is special in a sed pattern only when it appears at the end of
> the pattern, or, for GNU sed, at the end of a sub-expression.)
>
> It will save you some trouble to cut the shell out of it, so supposing you
> are going to use a Puppet Exec resource to run sed, you should rely on the
> 'posix' provider (the default where it is available), and avoid the 'shell'
> provider.
>
> If you don't need Puppet to interpolate any variables into the command
> string (as in your example) then it's not much harder than that:
>
> exec { 'Fill system.com':
> command => '/bin/sed -i \'s/$$HISTORY$\\$/puppet/\' /etc/system.com'
> }
>
> Note that the backslash you want passed through to sed needs to be escaped
> to Puppet. Quoting the whole command string with single quotes prevents
> Puppet from interpreting any of the dollar signs as introducing a variable
> interpolation. You might not need -- and even might not want -- the
> internal single quotes around the sed program, but if you include them then
> they must be escaped as shown.
>
> You can trick that out a bit, if you like. Personally, I'd probably do
> this:
>
> exec { 'Fill system.com':
> command => '/bin/sed -i \'s/$$HISTORY$\\$/puppet/\' /etc/system.com',
> onlyif => '/usr/bin/test -e /etc/system.com',
> refresh => '/bin/true',
> provider => 'posix'
> }
>
> Or in truth, if at all possible I would manage the whole file via Puppet.
> A Puppet template might be helpful for that, but for the specific example
> you provided it would be overkill (no need to use a template to sub a
> constant string into a template at run time when you could just edit it
> into the master's copy of the file in the first place).
>
>
> John
>
Thanks John It is works for me.
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