[Unit]
Description=Verify integrity of password and group files
After=systemd-sysusers.service

[Service]
Type=simple
# Always run both checks, but fail the service if either fails
ExecStart=/bin/sh -c '/usr/bin/pwck -r || r=1; /usr/bin/grpck -r && exit $r'
Nice=19
IOSchedulingClass=best-effort
IOSchedulingPriority=7