As some of the comments suggest, you can have a local and global version of angular cli on your system.
To be able to access your local version instead of global (lets say you have a different version installed locally then your global install) use npm run-script ng
for example
npm run-script ng generate component SomeCoolComponent
check out this answer on github to a similar question: https://github.com/angular/angular-cli/issues/5955#issuecomment-320273493