Enable BASH Shell vCenter 6.5 , 6.x

 You may encounter after logging into the console of a vcenter appliance either through vmware console or using putty or other SSH client tool, bash is disable. 

Quickest fix if you have reached the point of logging into and have the small menu of options that includes List APIs, List Plugins, Launch BASH is to run a command to enable BASH shell. 

On the surface, it looks like you can't enter any command but indeed you can. 

Enter at the prompt Command>  shell.set --enabled true  

This enables BASH shell for vcenter, then type in shell as you would normally and the BASH shell loads for you. 

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