diff --git a/input-device-list.sh b/input-device-list.sh
new file mode 100644
index 0000000..e6fa342
--- /dev/null
+++ b/input-device-list.sh
@@ -0,0 +1,30 @@
+#/bin/bash
+
+# input-device-list.sh
+# This program lists input devices on Debian GNU/Linux.
+# Copyright (c) 2024, Scott C. MacCallum (scott@scm-guru.live).
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# To do. Add code to verify that the user is root, or has run the script with
+# sudo. Add code to verify that the bc program is installed.
+
+# Change this variable to the group that should be informed of a need to
+# charge the battery. On GNU/Linux distributions users are often part of
+# a group that is the same as their login name, which works well if you only
+# want your user to be informed.
+
+xinput list
+
+exit 0