pkcs11-dump: 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/pkcs11-dump - from package: pkcs11-dump

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

Error in other languages:
pkcs11-dump: bevel nie gevind nie
pkcs11-dump: comandă negăsită
pkcs11-dump: comando não encontrado
pkcs11-dump: commande introuvable
pkcs11-dump: command not found
pkcs11-dump: käsku ei ole
pkcs11-dump: không tìm thấy lệnh
pkcs11-dump: komanda nerasta
pkcs11-dump: Kommando nicht gefunden.
pkcs11-dump: kommandot finns inte
pkcs11-dump: komut yok
pkcs11-dump: nie znaleziono polecenia
pkcs11-dump: níor aimsíodh an t-ordú
pkcs11-dump: no se encontró la orden
pkcs11-dump: no s'ha trobat l'ordre
pkcs11-dump: opdracht niet gevonden
pkcs11-dump: parancs nem található
pkcs11-dump: perintah tidak ditemukan
pkcs11-dump: príkaz nenájdený
pkcs11-dump: příkaz nenalezen
pkcs11-dump: команда не найдена
pkcs11-dump: командата не е открита
pkcs11-dump: 命令找不到
pkcs11-dump: コマンドが見つかりません