Sudo command Dont work

Hello,

I am beginner in Toradex kit.
I use imx6D processor 512 MB model.

I can try to update my system but sudo command not work. and I also try to install another software but I get this error:
sudo command not found.

please suggest me a right way to how to use command in terminal???

What exact hardware (module and carrier board) and software versions of things are you talking about?

BTW: In our regular Embedded Linux BSP’s one usually is already logged in as root so there is no point in sudo really.

Thank you for your reply,
hardware description given below:

Apalis iMX6 Dual 512MB

also attached link :
https://www.toradex.com/de/computer-on-modules/apalis-arm-family/nxp-freescale-imx-6

Thanks for this Information.

I also try to install another software but I get this error:

Which command did you use to install the software?
Please read the following to install the software package you need.

Best regards,
Jaski