@Mr.Kumar just by enabling the feature itself does not normally cause any disruption to your network services / data plane forwarding. It's a control plane operation.
One thing to be aware of, is the power this can give. The shell can give you a deeper level of control over the switch than the standard NX-OS CLI can. and so If an unauthorised user does gain access and has the necessary privileges, the could cause some real harm to your network/device and services.
Hope this helps.
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