1npm update @angular/cli -g

1npm install -g @angular/cli
2ng new my-dream-app
3cd my-dream-app
4ng serve

1npm uninstall -g angular-cli
2npm install -g @angular/cli@latest
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1npm uninstall -g @angular-cli
2npm install -g @angular/cli@latest
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1For updating angular cli type this command :
2ng update @angular/cli @angular/core   

1      
2        content_copy
3      
4      ng update @angular/cli @angular/core
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