science-neuroscience-modeling: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/science-neuroscience-modeling - from package: science-neuroscience-modeling

You may install the required package with command apt-get install {package}
Error in other languages:
science-neuroscience-modeling: bevel nie gevind nie
science-neuroscience-modeling: comandă negăsită
science-neuroscience-modeling: comando não encontrado
science-neuroscience-modeling: commande introuvable
science-neuroscience-modeling: command not found
science-neuroscience-modeling: käsku ei ole
science-neuroscience-modeling: không tìm thấy lệnh
science-neuroscience-modeling: komanda nerasta
science-neuroscience-modeling: Kommando nicht gefunden.
science-neuroscience-modeling: kommandot finns inte
science-neuroscience-modeling: komut yok
science-neuroscience-modeling: nie znaleziono polecenia
science-neuroscience-modeling: níor aimsíodh an t-ordú
science-neuroscience-modeling: no se encontró la orden
science-neuroscience-modeling: no s'ha trobat l'ordre
science-neuroscience-modeling: opdracht niet gevonden
science-neuroscience-modeling: parancs nem található
science-neuroscience-modeling: perintah tidak ditemukan
science-neuroscience-modeling: príkaz nenájdený
science-neuroscience-modeling: příkaz nenalezen
science-neuroscience-modeling: команда не найдена
science-neuroscience-modeling: командата не е открита
science-neuroscience-modeling: 命令找不到
science-neuroscience-modeling: コマンドが見つかりません