I have following code in puppet and when i run it is ignoring awk filter But if i use cut -d ' ' -f8 it works!
$hugepage=inline_template("<%= `grep Hugepagesize /proc/meminfo | awk '{print $2}'` %>")
notify {"Variable testing, hugepage size is ${hugepage}":}
Result following:
Notice: /Stage[main]/Sysctl::Pgsql/Notify[Variable testing, hugepage size is Hugepagesize: 2048 kB
Why it is printing Hugepagesize: 2048 kB? look like awk not working :(
On irb shell its working.
irb(main):002:0> `grep Hugepagesize /proc/meminfo | awk '{print $2}'`
=> "2048\n"
I tried following also but same result :(
$hugepage = generate("/bin/sh","-c", "/bin/grep Hugepagesize /proc/meminfo | /bin/awk '{print $2}'")
You are passing a quotation-mark-delimited string to either inline_template() or to generate(). Puppet will interpolate variable references it finds within; in particular, it will interpolate the value of variable $2. Supposing that that variable is undefined, an empty string will be interpolated. The result is then identical to
$hugepage=inline_template("<%= `grep Hugepagesize /proc/meminfo | awk '{print }'` %>")
which is precisely what you observe. To avoid this, you can escape the $, or you can change the outermost quotes to apostrophes (requiring you to do something about the inner apostrophes). I'd probably choose the former:
$hugepage=inline_template("<%= `grep Hugepagesize /proc/meminfo | awk '{print \$2}'` %>")