find-url-in-rpm-md-set: 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 Debian possible default full paths are:

/usr/share/drbl/bin/find-url-in-rpm-md-set - from package: drbl

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

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