run_cat: convert to using path_to_dn() run_edit: convert to using path_to_dn() run_copy & run_move: convert to using path_to_dn() run_grep: convert to using path_to_dn() run_passwd: convert to using path_to_dn()

add method path_to_dn() to convert a given "path" to a DN path_to_dn() replaces the occurrences of '~', '.' and '..' in a path given and returns a DN. However, it does not check whether the DN is valid. Especially: - on return it is not guaranteed that the DN exists - on return the first part does not need to be a valid RDN