samdump2: 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 CentOS possible default full paths are:

/usr/bin/samdump2 - from package: samdump2

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/samdump2 - from package: samdump2

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

Error in other languages:
samdump2: bevel nie gevind nie
samdump2: comandă negăsită
samdump2: comando não encontrado
samdump2: commande introuvable
samdump2: command not found
samdump2: käsku ei ole
samdump2: không tìm thấy lệnh
samdump2: komanda nerasta
samdump2: Kommando nicht gefunden.
samdump2: kommandot finns inte
samdump2: komut yok
samdump2: nie znaleziono polecenia
samdump2: níor aimsíodh an t-ordú
samdump2: no se encontró la orden
samdump2: no s'ha trobat l'ordre
samdump2: opdracht niet gevonden
samdump2: parancs nem található
samdump2: perintah tidak ditemukan
samdump2: príkaz nenájdený
samdump2: příkaz nenalezen
samdump2: команда не найдена
samdump2: командата не е открита
samdump2: 命令找不到
samdump2: コマンドが見つかりません