i always start it by typing cd /, cd home, cd ubuntu, cd fivereborn, cd bin, mono CitizenMP.Server.exe.
Im actually really tired of doing that everytime i close and open my server.
Basically
Make a bash script and set it to execute when the vps starts up (/etc/rc.local)
In the script:
nano serverstart.sh
#!/bin/bash
#Your Linux commands
CTRL + X (Press Y followed by enter to save)
Give the file execution permissions:
sudo chmod +x serverstart.sh
Edit /etc/rc.local with nano / vi / vim, whatever you prefer and add this to the end of the file (before exit 0):
./home/serverstart.sh
Please note that this is more linux related than anything else.