Flair command not found on terminal

I am a new user of fluka and flair. I installed fluka deb version on Ubuntu and work well. I also installed flair using deb version. It installed successfully but when I try to launch flair from terminal, I always get command not found. I don’t know what is wrong, how do launch/ open flair that I installed.
Thank you

Dear Saheed,

did you try to close and reopen the terminal after installing Flair?

What is the content of the directory: /usr/local/flair ?

Cheers,
David


this is what i have

Dear Saheed,

please try to close and reopen the terminal.

Also, what command are you using?

Cheers,
David

I am using flair on terminal. I got response that flair command not found. I Also try cd to /usr/local/flair in the terminal and got permission denied

Dear Saheed,

please check the flair executable is in the /usr/local/bin directory, and this directory is in your $PATH variable.

Cheers,
David