Add OS detection based on PR #576
Add OS detection based on PR #576

This change adds OS detection and suggest a proper command for the
detected OS.

Signed-off-by: Jens Reimann <d1bf62d29e711fdf0a5795916341a7b53d204e2a@redhat.com>
Also-by: Amit Kumar Mondal <d033e22ae348aeb5660fc2140aec35850c4da997@amitinside.com>
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