1225022

anonymous@undisclosed.example.com (Anonymous) — Sat, 23 Nov 2024 11:55:26 +0000

Send notification from systemd

At the end of a script I wrote, I want to send a notification to know when it ends. The content of the script is not important except the notification part.

Here is the important part of the script:

#!/bin/bash
 
USER=<username>
USERID=`id -u $USER`
 
sudo -u $USER bash -c "DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$USERID/bus notify-send -t 5000 -u normal -i /usr/share/icons/Adwaita/32x32/devices/drive-removable-media.png 'Ah! the element of surprise'"

When I run it from my terminal, it works well.

I've created a service file in /etc/systemd/system with the following content:

[Unit]
Description=Test notification
Requires=home.mount
After=home.mount

[Service]
ExecStart=/home/alexis/Personnalisation/Scripts/test.notification.sh
Type=oneshot

[Install]
WantedBy=graphical.target

When I run it through sudo systemctl start test.notification, it works well.

The problem arise when systemd runs after I run systemd enable test.notification.

If I add other things in the script, they are done.

Is my service description wrong? Is my notification instruction missing something?

The problem is that systemd runs with a minimal environment and not all envvar are known during the script execution. To make it work, I've change bash by /bin/bash.

I've found out what was wrong by running the script without the environment:

env -i /path/to/script

It returned the following error:

sudo: bash: command not found

This error is self explanatory and helped me find the problem.

Send notification from systemd - Super User

Mon wiki - pele_mele:stack_exchange:superuser

1225022

Send notification from systemd