roodi-describe: 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-describe - from package: roodi

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