restore: 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:

/sbin/restore - from package: dump

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

On Debian possible default full paths are:

/sbin/restore - from package: dump

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

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