cppw: 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/sbin/cppw - from package: passwd

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

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