If service start/stop/restart/enable/disable fails, it help to debug the issue, if STDERR is not hidden, hence the error message can be seen. systemctl furthermore has the `-q` option to suppress non-error output. It works as well for "is-enabled", but until a certain systemd version still throws an error, if the checked service does not exist at all. Once Debian Bullseye support is dropped by Pi-hole, also STDERR form systemctl is-enabled does not need to be suppressed anymore.
Signed-off-by: MichaIng <micha@dietpi.com>
MichaIng
729a44f82a