nss-pp: 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/nss-pp - from package: libnss3-tools

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

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