amrecover: 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/amrecover - from package: amanda-client

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

On Debian possible default full paths are:

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

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

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