systemd'шное
Можете мне рассказывать что угодно, а фэнсервис решает.
sudo systemctl show sound.target
Id=sound.target
[skip]
Documentation=man:systemd.special(7)
[skip]
Transient=no
man 7 systemd.special
DESCRIPTION
A few units are treated specially by systemd. They have special internal semantics and cannot be renamed.
[skip]
SPECIAL SYSTEM UNITS FOR DEVICES
[skip]
sound.target
This target is started automatically as soon as a sound card is plugged in or becomes available at boot.
This may be used to pull in audio management daemons dynamically when audio hardware is found.
Вот это - отличная документированность. То есть идея настолько охуенна, насколько охуенным было появление man'ов в unix'е.
sudo systemctl show sound.target
Id=sound.target
[skip]
Documentation=man:systemd.special(7)
[skip]
Transient=no
man 7 systemd.special
DESCRIPTION
A few units are treated specially by systemd. They have special internal semantics and cannot be renamed.
[skip]
SPECIAL SYSTEM UNITS FOR DEVICES
[skip]
sound.target
This target is started automatically as soon as a sound card is plugged in or becomes available at boot.
This may be used to pull in audio management daemons dynamically when audio hardware is found.
Вот это - отличная документированность. То есть идея настолько охуенна, насколько охуенным было появление man'ов в unix'е.