dr_permutate: 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/dr_permutate - from package: draai

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

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