I have two processes:

The first process, I run with: . / Vlc video >> resu.txt it gives me an output file resu.txt

The second process is a script that makes calculations on the file resu.txt
The name of this script is calcule.sh, I run it with: . / Calcul.sh

I want to run two processes at the same time. ie having two parallel processes.

how I could run two processes in parallel (. / Vlc video >> resu.txt and . / Calcul.s ). Is there a command that do this ? Please, can you propose me a code that will do that

Thank you in advance for your answers.