scores: 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/lib/fastdnaml/bin/scores - from package: fastdnaml

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

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