best way to run scripts automatically after boot

I might be a little noobish, but:
Whats the easiest way to run .sh scripts after login, e.g. activate the Thinkpad Trackpoint?
In Kali 1 I simply added a autorun task, but now I can only run programs, no scripts.

I tried with rc.local, but the scripts were not working.
Executing them manually after boot everything works.

That's because Kali 2.0 uses Systemd. The proper way is to create a oneshot Systemd service unit file then enable it.

Code:

---

[Unit]
Description=Trackpoint Script

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/root/trackpoint.sh

[Install]
WantedBy=graphical.target

---