tldr/pages/linux/udevadm.md

udevadm

Linux udev management tool. More information: https://www.freedesktop.org/software/systemd/man/udevadm.

• Monitor all device events:

sudo udevadm monitor

• Print uevents sent out by the kernel:

sudo udevadm monitor --kernel

• Print device events after being processed by udev:

sudo udevadm monitor --udev

• List attributes of device /dev/sda:

sudo udevadm info --attribute-walk {{/dev/sda}}

• Reload all udev rules:

sudo udevadm control --reload-rules

• Trigger all udev rules to run:

sudo udevadm trigger

• Test an event run by simulating loading of /dev/sda:

sudo udevadm test {{/dev/sda}}