# change mode to directory
cmd() { sa__change_mode_directory "${@}"; }
sa__change_mode_directory() {
	chmod \
		"755" \
		"${@}"
}

# change mode to file
cmf() { sa__change_mode_file "${@}"; }
sa__change_mode_file() {
	chmod \
		"644" \
		"${@}"
}