trying to poweroff and poweron VM through CLI or script

Hi All,

I am looking for options to reboot the VM using CLI or script. I tried using ovftool but looks like there is no way using ovftool just to power-off and power-on? is there any way I Can achieve rebooting VM through CLI / Script? I might need to have some power down time between power off and power on cycles.

Part of our automation i would like to perform this for certain use case validations.

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Thanks in advanced,

Venkata