[Unit]
Description=Process accounting
Documentation=man:accton(8)

[Service]
Type=oneshot
RemainAfterExit=true
ExecStartPre=/usr/bin/chmod 600 /var/log/account/pacct
ExecStart=/usr/sbin/accton /var/log/account/pacct
ExecStop=/usr/sbin/accton off

[Install]
WantedBy=multi-user.target