pkcs11_startup: 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/pkcs11_startup - from package: opencryptoki

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

Error in other languages:
pkcs11_startup: bevel nie gevind nie
pkcs11_startup: comandă negăsită
pkcs11_startup: comando não encontrado
pkcs11_startup: commande introuvable
pkcs11_startup: command not found
pkcs11_startup: käsku ei ole
pkcs11_startup: không tìm thấy lệnh
pkcs11_startup: komanda nerasta
pkcs11_startup: Kommando nicht gefunden.
pkcs11_startup: kommandot finns inte
pkcs11_startup: komut yok
pkcs11_startup: nie znaleziono polecenia
pkcs11_startup: níor aimsíodh an t-ordú
pkcs11_startup: no se encontró la orden
pkcs11_startup: no s'ha trobat l'ordre
pkcs11_startup: opdracht niet gevonden
pkcs11_startup: parancs nem található
pkcs11_startup: perintah tidak ditemukan
pkcs11_startup: príkaz nenájdený
pkcs11_startup: příkaz nenalezen
pkcs11_startup: команда не найдена
pkcs11_startup: командата не е открита
pkcs11_startup: 命令找不到
pkcs11_startup: コマンドが見つかりません