science-neuroscience-cognitive: command not found

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-cognitive - from package: science-neuroscience-cognitive

You may install the required package with command apt-get install {package}

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