How to delete all hidden files and directories using Bash?
rm -rf .[^.] .??*
Should catch all cases. The .??* will only match 3+ character filenames (as explained in previous answer), the .[^.] will catch any two character entries (other than ..).
find -path './.*' -delete
This matches all files in the current directory which start with a
. and deletes these recursively. Hidden files in non-hidden directories are not touched.
In case you really wanted to wipe everything from a directory,
find -delete would suffice.