problem area

Dangerous Commands

Commands worth understanding before copying from the internet.

3 checked fixes

One-liners in this area

Dangerous Commands caution

One rsync flag can save you. Another can erase the wrong side.

rsync -avhn --delete ./source/ ./backup/

Dangerous Commands safe

The permission fix was easy. Knowing what not to chmod was the hard part.

namei -l /var/www/example/index.html

Dangerous Commands caution

`rsync --delete` is useful. It is also how people erase the wrong side.

rsync -avhn --delete ./source/ ./backup/ | grep '^deleting'