pkdsm2shadow: 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/pkdsm2shadow - from package: pktools

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

Error in other languages:
pkdsm2shadow: bevel nie gevind nie
pkdsm2shadow: comandă negăsită
pkdsm2shadow: comando não encontrado
pkdsm2shadow: commande introuvable
pkdsm2shadow: command not found
pkdsm2shadow: käsku ei ole
pkdsm2shadow: không tìm thấy lệnh
pkdsm2shadow: komanda nerasta
pkdsm2shadow: Kommando nicht gefunden.
pkdsm2shadow: kommandot finns inte
pkdsm2shadow: komut yok
pkdsm2shadow: nie znaleziono polecenia
pkdsm2shadow: níor aimsíodh an t-ordú
pkdsm2shadow: no se encontró la orden
pkdsm2shadow: no s'ha trobat l'ordre
pkdsm2shadow: opdracht niet gevonden
pkdsm2shadow: parancs nem található
pkdsm2shadow: perintah tidak ditemukan
pkdsm2shadow: príkaz nenájdený
pkdsm2shadow: příkaz nenalezen
pkdsm2shadow: команда не найдена
pkdsm2shadow: командата не е открита
pkdsm2shadow: 命令找不到
pkdsm2shadow: コマンドが見つかりません