amtape: 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/amtape - from package: amanda-server

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

On Debian possible default full paths are:

/usr/sbin/amtape - from package: amanda-server

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

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