{ ... }: {
	text = ''
		# Run something recursively over all directories.
		# Usage: recursive <COMMAND>
		function recursive() {
			if [[ "''${*}" = "" ]]; then
				help recursive
				return 2
			fi

			local IFS=$'\n'
			local current="''${PWD}"
			local dirs=$(find -type d)
			local total=$(find -type d | wc -l) # TODO: don't call find twice. won't work with "echo ''${dirs}".
			local count=0
			local failed=0

			for dir in ''${dirs}; do
				# increment counter.
				((count++))

				# cd into the next dir.
				cd "''${current}" || failed=''${?}
				cd "''${dir}" || failed=''${?}

				# echo status.
				echo -e "''${color_bblue}[''${count}/''${total}] ''${dir}''${color_default}"

				# run command.
				''${*} || failed=''${?}

				# Add newline if not the last one.
				[[ "''${count}" = "''${total}" ]] || echo
			done

			# return back on complete.
			cd "''${current}" || failed=''${?}

			return ''${failed}
		}

		# Run something recursively over directories of 1 depth (excluding current dir).
		# Usage: recursive1 <COMMAND>
		function recursive1() {
			if [[ "''${*}" = "" ]]; then
				help recursive1
				return 2
			fi

			local IFS=$'\n'
			local current="''${PWD}"
			local dirs=$(find -mindepth 1 -maxdepth 1 -type d)
			local total=$(find -mindepth 1 -maxdepth 1 -type d | wc -l) # TODO: don't call find twice. won't work with "echo ''${dirs}".
			local count=0
			local failed=0

			for dir in ''${dirs}; do
				# increment counter.
				((count++))

				# cd into the next dir.
				cd "''${current}"
				cd "''${dir}"

				# echo status.
				echo -e "''${color_bblue}[''${count}/''${total}] ''${dir}''${color_default}"

				# run command.
				''${*} || failed=''${?}

				# Add newline if not the last one.
				[[ "''${count}" = "''${total}" ]] || echo
			done

			# return back on complete.
			cd "''${current}"

			return ''${failed}
		}

		# autocomplete.
		complete -F _autocomplete_nested recursive recursive1
	'';
}