amrmtape: 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/amrmtape - from package: amanda-server

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

On Debian possible default full paths are:

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

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

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