nss-passwords: 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-passwords - from package: nss-passwords

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

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