roodi: command not found

Have You tried accessing the binary with the full path?

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/bin/roodi - from package: roodi

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