din: 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/din - from package: din

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