avoid warning when path exists

[redPanther]

mostly using mkdir -p is the best option to avoid unnecessary warnings and errors when parent paths not exists. I'm not looked into the other scripts, but I guess there is the same situation .. would be nice to fix this

[texadactyl]

While you are at it, for "extra credit" .....

• The echo statements aren't very helpful.
• The scripts have no indentation, making them more difficult to maintain.