Talys commad is not found

Hello Geant4 users, i tried to have the thin and thick yield using Geant4 and Talys code, but i have a problem using talys after i wrote this in the terminal:

talys < talys.inp > talys.out

i got: talys command is not found.

please any one can help me with that ?

This is not really a question for the Geant4 forum. Talys is a separate nuclear reaction program, the latest version being Talys-1.96. The source code must be downloaded, compiled and installed on your machine. See the website TENDL-2021 nuclear data library for more information.