don't use -f with rm
under ''Remove a directory and all of its contents'' it says ''rm -rf NAME-OF-DIRECTORY''. Better would be ''rm -r NAME-OF-DIRECTORY'' (without ''-f'')
For a person new to CLI and git, it would be helpful to use more verbose commands and to keep the number of parameters to a minimum. Also the f-option introduces unnecessary risks, especially when typed by hand.