[plug] What's the best way to get kernel version from a binary?

[Marcos Raúl Carot]

cat /proc/version

On Thu, 24 Nov 2016, 11:36 Bill Kenworthy <billk at iinet.net.au> wrote:

> What's the best way to get kernel version from a binary?
>
> Context is that the raspberry pi stock firware doesn’t use version
> numbers in the filename and I want to know what kernel version I am
> building a custom initrd using dracut for a btrfs on root filesystem.
>
> Easy to get manually (strings|grep the file) but its clumsy and hard to
> get precision in a script and uname doesn’t work on a file :(
>
> BillK
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