Tell HN: Vim users, `:x` is like `:wq` but writes only when changes are made
I learned to do `:wq` after I learned that `:X` encrypts your file. When typing without really paying attention to the screen, I've twice encrypted my file with password like `cd tmp`, then saved the config file, breaking my system.After that, I switched to `:wq` (and sometimes `:w` `:q`) which is much safer against over-typing.