There's no need to be sorry for being noob. I also recognized that from your original post.

Fast and short bash-scripting course with actually useful tasks:

https://www.youtube.com/playlist?list=PLT98CRl2KxKGj-VKtApD8-zCqSaN2mD4w

For cron write 'man cron' into your terminal and read the manpage docs on how to use cron. As already suggested 'crontab -e' is the command you need, but a quick look in the docs explains you how it actually works.

I don't give you direct answers simply because I want you to learn Linux by yourself and enjoy the benefits of it :)

Since you only need to run a single command as a user open terminal and give command 'crontab -e'. If you haven't set an editor it'll ask for one, pick nano.

The syntax for crontab is like this (man 5 crontab will show it on your system as well):

field          allowed values
-----          --------------
minute         0–59
hour           0–23
day of month   1–31
month          1–12 (or names, see below)
day of week    0–7 (0 or 7 is Sun, or use names)
command to run with full path

So, in your case put in this line:

0 10 * * * /usr/bin/sct 2750

I'm not sure if sct is really at that path and I don't have that installed, so verify that first (run 'which sct'). Save the file and exit editor (ctrl+o, ctrl+x on nano). That's it. However, I don't quarantee results with that, since X with environment variables and all may cause issues, but if that's the case I'm sure this community can help with that as well.