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<h1>Configuring USB notifications on Linux</h1>
<p>If you want to receive a small notification as soon as a USB storage device is plugged in or plugged out, you're in the right place.</p>
<p>Your system detects a USB device upon connection or disconnection using a utility named <code>udev</code>. It allows for defining rules to perform specific tasks. Combined with <code>notify-send</code>, you can trigger desktop notifications instantly.</p>
<h2>1. Creating a udev rule</h2>
<p>Save the following as <code>99-usb-notify.rules</code> under <code>/etc/udev/rules.d/</code></p>
<pre><code>ACTION=="add", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", RUN+="/usr/local/bin/usb-notify-add.sh '$env{ID_MODEL}'"
ACTION=="remove", SUBSYSTEM=="block", ENV{DEVTYPE}=="disk", RUN+="/usr/local/bin/usb-notify-rem.sh '$env{ID_MODEL}'"</code></pre>
<h2>2. Configuring the scripts</h2>
<p>Save both scripts under <code>/usr/local/bin/</code> and make them executable</p>
<span class="script-label">usb-notify-add.sh</span>
<pre><code>#!/bin/bash
DEVICE_NAME=${1:-"Unknown USB Device"}
USER_ID=$(id -u <your-username>)
export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$USER_ID/bus
sudo -u <your-username> DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS /usr/bin/notify-send "USB Connected" "Device: $DEVICE_NAME"</code></pre>
<span class="script-label">usb-notify-rem.sh</span>
<pre><code>#!/bin/bash
DEVICE_NAME=${1:-"Unknown USB Device"}
USER_ID=$(id -u <your-username>)
export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$USER_ID/bus
sudo -u <your-username> DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS /usr/bin/notify-send "USB Disconnected" "Device: $DEVICE_NAME"</code></pre>
<h2>3. Reloading the udev rules</h2>
<p>Once the files are saved, reload the udev configuration to apply the changes:</p>
<pre><code>sudo udevadm control --reload-rules
sudo udevadm trigger</code></pre>
<p>And just like that, you've setup USB notifications. Give it a try! Plug in a device and check if your system sends a notification with the device name.</p>
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