amfetchdump: 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/sbin/amfetchdump - from package: amanda-client

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

On Debian possible default full paths are:

/usr/sbin/amfetchdump - from package: amanda-client

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

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