pam-tmpdir-helper: 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:

/sbin/pam-tmpdir-helper - from package: libpam-tmpdir

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

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